{
  "info": {
    "_postman_id": "99284d03-c86e-48b1-a7de-602fae8218cb",
    "name": "API Reference subpackage_advertisement_opportunities subpackage_subscriptions API",
    "schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json",
    "createdAt": "2026-07-28T01:13:11.000Z",
    "updatedAt": "2026-07-28T01:13:11.000Z",
    "lastUpdatedBy": "35240",
    "uid": "35240-99284d03-c86e-48b1-a7de-602fae8218cb"
  },
  "item": [
    {
      "name": "publications",
      "item": [
        {
          "name": "{publicationId}",
          "item": [
            {
              "name": "subscriptions",
              "item": [
                {
                  "name": "by_email",
                  "item": [
                    {
                      "name": "{email}",
                      "item": [
                        {
                          "name": "Get subscription by email <Badge intent=\"info\" minimal outlined>OAuth Scope: subscriptions:read</Badge>",
                          "id": "351eddbf-242e-4afe-85e1-35cae90eefcf",
                          "protocolProfileBehavior": {
                            "disableBodyPruning": true
                          },
                          "request": {
                            "method": "GET",
                            "header": [
                              {
                                "key": "Accept",
                                "value": "application/json"
                              }
                            ],
                            "url": {
                              "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/by_email/:email?expand[]=referrals",
                              "host": [
                                "{{baseUrl}}"
                              ],
                              "path": [
                                "publications",
                                ":publicationId",
                                "subscriptions",
                                "by_email",
                                ":email"
                              ],
                              "query": [
                                {
                                  "description": "Optional list of expandable objects.<br>`subscription_premium_tiers ` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`tags` - Returns an array of tags that have been set on the subscription.<br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                                  "key": "expand[]",
                                  "value": "referrals"
                                }
                              ],
                              "variable": [
                                {
                                  "id": "7187b815-1f94-43f9-ae90-005e502b0b1c",
                                  "key": "publicationId",
                                  "value": "<string>",
                                  "description": "(Required) The prefixed ID of the publication object"
                                },
                                {
                                  "id": "0e1520fa-701b-470e-9f8b-afd4cf745ba8",
                                  "key": "email",
                                  "value": "<string>",
                                  "description": "(Required) The ID of the subscriber object"
                                }
                              ]
                            },
                            "description": "<Info>Please note that this endpoint requires the email to be URL encoded. Please reference your language's documentation for the correct method of encoding.</Info> Retrieve a single subscription belonging to a specific email address in a specific publication."
                          },
                          "response": [
                            {
                              "id": "c792c1ea-eaba-4419-9ffd-7af68488fd63",
                              "name": "OK",
                              "originalRequest": {
                                "method": "GET",
                                "header": [
                                  {
                                    "key": "Accept",
                                    "value": "application/json"
                                  }
                                ],
                                "url": {
                                  "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/by_email/:email?expand[]=referrals",
                                  "host": [
                                    "{{baseUrl}}"
                                  ],
                                  "path": [
                                    "publications",
                                    ":publicationId",
                                    "subscriptions",
                                    "by_email",
                                    ":email"
                                  ],
                                  "query": [
                                    {
                                      "description": "Optional list of expandable objects.<br>`subscription_premium_tiers ` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`tags` - Returns an array of tags that have been set on the subscription.<br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                                      "key": "expand[]",
                                      "value": "referrals"
                                    }
                                  ],
                                  "variable": [
                                    {
                                      "key": "publicationId"
                                    },
                                    {
                                      "key": "email"
                                    }
                                  ]
                                }
                              },
                              "status": "OK",
                              "code": 200,
                              "_postman_previewlanguage": "json",
                              "header": [
                                {
                                  "key": "Content-Type",
                                  "value": "application/json"
                                }
                              ],
                              "cookie": [],
                              "responseTime": null,
                              "body": "{\n  \"data\": {\n    \"id\": \"<string>\",\n    \"email\": \"<email>\",\n    \"status\": \"invalid\",\n    \"created\": \"<integer>\",\n    \"subscription_tier\": \"premium\",\n    \"subscription_premium_tier_names\": [\n      \"<string>\",\n      \"<string>\"\n    ],\n    \"utm_source\": \"<string>\",\n    \"utm_medium\": \"<string>\",\n    \"utm_channel\": \"recommendation\",\n    \"utm_campaign\": \"<string>\",\n    \"utm_term\": \"<string>\",\n    \"utm_content\": \"<string>\",\n    \"referring_site\": \"<string>\",\n    \"referral_code\": \"<string>\",\n    \"subscription_premium_tiers\": [\n      {\n        \"id\": \"<string>\",\n        \"name\": \"<string>\",\n        \"status\": \"archived\"\n      },\n      {\n        \"id\": \"<string>\",\n        \"name\": \"<string>\",\n        \"status\": \"active\"\n      }\n    ],\n    \"custom_fields\": [\n      {\n        \"name\": \"<string>\",\n        \"kind\": \"datetime\",\n        \"value\": \"<string>\"\n      },\n      {\n        \"name\": \"<string>\",\n        \"kind\": \"string\",\n        \"value\": \"<string>\"\n      }\n    ],\n    \"tags\": [\n      \"<string>\",\n      \"<string>\"\n    ],\n    \"stats\": {\n      \"emails_received\": \"<integer>\",\n      \"open_rate\": \"<double>\",\n      \"click_through_rate\": \"<double>\"\n    },\n    \"newsletter_list_ids\": [\n      \"<string>\",\n      \"<string>\"\n    ]\n  }\n}",
                              "createdAt": "2026-07-28T01:13:12.000Z",
                              "updatedAt": "2026-07-28T01:13:12.000Z",
                              "uid": "35240-c792c1ea-eaba-4419-9ffd-7af68488fd63"
                            },
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                              "name": "Bad Request",
                              "originalRequest": {
                                "method": "GET",
                                "header": [
                                  {
                                    "key": "Accept",
                                    "value": "application/json"
                                  }
                                ],
                                "url": {
                                  "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/by_email/:email?expand[]=referrals",
                                  "host": [
                                    "{{baseUrl}}"
                                  ],
                                  "path": [
                                    "publications",
                                    ":publicationId",
                                    "subscriptions",
                                    "by_email",
                                    ":email"
                                  ],
                                  "query": [
                                    {
                                      "description": "Optional list of expandable objects.<br>`subscription_premium_tiers ` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`tags` - Returns an array of tags that have been set on the subscription.<br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                                      "key": "expand[]",
                                      "value": "referrals"
                                    }
                                  ],
                                  "variable": [
                                    {
                                      "key": "publicationId"
                                    },
                                    {
                                      "key": "email"
                                    }
                                  ]
                                }
                              },
                              "status": "Bad Request",
                              "code": 400,
                              "_postman_previewlanguage": "json",
                              "header": [
                                {
                                  "key": "Content-Type",
                                  "value": "application/json"
                                }
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                              "responseTime": null,
                              "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
                              "createdAt": "2026-07-28T01:13:12.000Z",
                              "updatedAt": "2026-07-28T01:13:12.000Z",
                              "uid": "35240-b1e6cdaa-ed0b-4968-9a2b-9b34e0258ce5"
                            },
                            {
                              "id": "c7cfad25-abce-4fc5-8ea0-6927fd5679ea",
                              "name": "Resource Not Found",
                              "originalRequest": {
                                "method": "GET",
                                "header": [
                                  {
                                    "key": "Accept",
                                    "value": "application/json"
                                  }
                                ],
                                "url": {
                                  "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/by_email/:email?expand[]=referrals",
                                  "host": [
                                    "{{baseUrl}}"
                                  ],
                                  "path": [
                                    "publications",
                                    ":publicationId",
                                    "subscriptions",
                                    "by_email",
                                    ":email"
                                  ],
                                  "query": [
                                    {
                                      "description": "Optional list of expandable objects.<br>`subscription_premium_tiers ` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`tags` - Returns an array of tags that have been set on the subscription.<br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                                      "key": "expand[]",
                                      "value": "referrals"
                                    }
                                  ],
                                  "variable": [
                                    {
                                      "key": "publicationId"
                                    },
                                    {
                                      "key": "email"
                                    }
                                  ]
                                }
                              },
                              "status": "Not Found",
                              "code": 404,
                              "_postman_previewlanguage": "json",
                              "header": [
                                {
                                  "key": "Content-Type",
                                  "value": "application/json"
                                }
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                              "cookie": [],
                              "responseTime": null,
                              "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
                              "createdAt": "2026-07-28T01:13:12.000Z",
                              "updatedAt": "2026-07-28T01:13:12.000Z",
                              "uid": "35240-c7cfad25-abce-4fc5-8ea0-6927fd5679ea"
                            },
                            {
                              "id": "4b2369d3-1fba-4a21-91f5-5a6f346af0d7",
                              "name": "Rate Limit Exceeded",
                              "originalRequest": {
                                "method": "GET",
                                "header": [
                                  {
                                    "key": "Accept",
                                    "value": "application/json"
                                  }
                                ],
                                "url": {
                                  "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/by_email/:email?expand[]=referrals",
                                  "host": [
                                    "{{baseUrl}}"
                                  ],
                                  "path": [
                                    "publications",
                                    ":publicationId",
                                    "subscriptions",
                                    "by_email",
                                    ":email"
                                  ],
                                  "query": [
                                    {
                                      "description": "Optional list of expandable objects.<br>`subscription_premium_tiers ` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`tags` - Returns an array of tags that have been set on the subscription.<br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                                      "key": "expand[]",
                                      "value": "referrals"
                                    }
                                  ],
                                  "variable": [
                                    {
                                      "key": "publicationId"
                                    },
                                    {
                                      "key": "email"
                                    }
                                  ]
                                }
                              },
                              "status": "Too Many Requests",
                              "code": 429,
                              "_postman_previewlanguage": "json",
                              "header": [
                                {
                                  "key": "Content-Type",
                                  "value": "application/json"
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                              "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
                              "createdAt": "2026-07-28T01:13:12.000Z",
                              "updatedAt": "2026-07-28T01:13:12.000Z",
                              "uid": "35240-4b2369d3-1fba-4a21-91f5-5a6f346af0d7"
                            },
                            {
                              "id": "e52209c2-d685-4f89-8b2c-69e341aab6f7",
                              "name": "Internal Server Error",
                              "originalRequest": {
                                "method": "GET",
                                "header": [
                                  {
                                    "key": "Accept",
                                    "value": "application/json"
                                  }
                                ],
                                "url": {
                                  "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/by_email/:email?expand[]=referrals",
                                  "host": [
                                    "{{baseUrl}}"
                                  ],
                                  "path": [
                                    "publications",
                                    ":publicationId",
                                    "subscriptions",
                                    "by_email",
                                    ":email"
                                  ],
                                  "query": [
                                    {
                                      "description": "Optional list of expandable objects.<br>`subscription_premium_tiers ` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`tags` - Returns an array of tags that have been set on the subscription.<br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                                      "key": "expand[]",
                                      "value": "referrals"
                                    }
                                  ],
                                  "variable": [
                                    {
                                      "key": "publicationId"
                                    },
                                    {
                                      "key": "email"
                                    }
                                  ]
                                }
                              },
                              "status": "Internal Server Error",
                              "code": 500,
                              "_postman_previewlanguage": "json",
                              "header": [
                                {
                                  "key": "Content-Type",
                                  "value": "application/json"
                                }
                              ],
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                              "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
                              "createdAt": "2026-07-28T01:13:12.000Z",
                              "updatedAt": "2026-07-28T01:13:12.000Z",
                              "uid": "35240-e52209c2-d685-4f89-8b2c-69e341aab6f7"
                            }
                          ],
                          "createdAt": "2026-07-28T01:13:12.000Z",
                          "updatedAt": "2026-07-28T01:13:12.000Z",
                          "uid": "35240-351eddbf-242e-4afe-85e1-35cae90eefcf"
                        },
                        {
                          "name": "Update subscription by email <Badge intent=\"info\" minimal outlined>OAuth Scope: subscriptions:write</Badge>",
                          "id": "83de2e9b-fc3b-4fc9-8fff-937c5c37661e",
                          "protocolProfileBehavior": {
                            "disableBodyPruning": true
                          },
                          "request": {
                            "method": "PUT",
                            "header": [
                              {
                                "key": "Content-Type",
                                "value": "application/json"
                              },
                              {
                                "key": "Accept",
                                "value": "application/json"
                              }
                            ],
                            "body": {
                              "mode": "raw",
                              "raw": "{\n  \"email\": \"<string>\",\n  \"tier\": \"free\",\n  \"premium_tier_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"premium_tiers\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"stripe_customer_id\": \"<string>\",\n  \"unsubscribe\": \"<boolean>\",\n  \"custom_fields\": [\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\",\n      \"delete\": \"<boolean>\"\n    },\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\",\n      \"delete\": \"<boolean>\"\n    }\n  ]\n}",
                              "options": {
                                "raw": {
                                  "headerFamily": "json",
                                  "language": "json"
                                }
                              }
                            },
                            "url": {
                              "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/by_email/:email",
                              "host": [
                                "{{baseUrl}}"
                              ],
                              "path": [
                                "publications",
                                ":publicationId",
                                "subscriptions",
                                "by_email",
                                ":email"
                              ],
                              "variable": [
                                {
                                  "id": "86556486-2d21-41dc-a3fb-8c116ab6e782",
                                  "key": "publicationId",
                                  "value": "<string>",
                                  "description": "(Required) The prefixed ID of the publication object"
                                },
                                {
                                  "id": "2ac01e82-430b-4156-b8a6-b2566a2b205d",
                                  "key": "email",
                                  "value": "<string>",
                                  "description": "(Required) The email of the subscription object"
                                }
                              ]
                            },
                            "description": "Update a single subscription by email."
                          },
                          "response": [
                            {
                              "id": "e09d354a-7fe7-4de0-9a72-c67cda35ad34",
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                                "method": "PUT",
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                                    "value": "application/json"
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                                    "key": "Accept",
                                    "value": "application/json"
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                                ],
                                "body": {
                                  "mode": "raw",
                                  "raw": "{\n  \"email\": \"<string>\",\n  \"tier\": \"free\",\n  \"premium_tier_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"premium_tiers\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"stripe_customer_id\": \"<string>\",\n  \"unsubscribe\": \"<boolean>\",\n  \"custom_fields\": [\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\",\n      \"delete\": \"<boolean>\"\n    },\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\",\n      \"delete\": \"<boolean>\"\n    }\n  ]\n}",
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                                    "raw": {
                                      "headerFamily": "json",
                                      "language": "json"
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                                  }
                                },
                                "url": {
                                  "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/by_email/:email",
                                  "host": [
                                    "{{baseUrl}}"
                                  ],
                                  "path": [
                                    "publications",
                                    ":publicationId",
                                    "subscriptions",
                                    "by_email",
                                    ":email"
                                  ],
                                  "variable": [
                                    {
                                      "key": "publicationId"
                                    },
                                    {
                                      "key": "email"
                                    }
                                  ]
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                              },
                              "status": "OK",
                              "code": 200,
                              "_postman_previewlanguage": "json",
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                              "body": "{\n  \"data\": {\n    \"id\": \"<string>\",\n    \"email\": \"<email>\",\n    \"status\": \"invalid\",\n    \"created\": \"<integer>\",\n    \"subscription_tier\": \"premium\",\n    \"subscription_premium_tier_names\": [\n      \"<string>\",\n      \"<string>\"\n    ],\n    \"utm_source\": \"<string>\",\n    \"utm_medium\": \"<string>\",\n    \"utm_channel\": \"recommendation\",\n    \"utm_campaign\": \"<string>\",\n    \"utm_term\": \"<string>\",\n    \"utm_content\": \"<string>\",\n    \"referring_site\": \"<string>\",\n    \"referral_code\": \"<string>\",\n    \"subscription_premium_tiers\": [\n      {\n        \"id\": \"<string>\",\n        \"name\": \"<string>\",\n        \"status\": \"archived\"\n      },\n      {\n        \"id\": \"<string>\",\n        \"name\": \"<string>\",\n        \"status\": \"active\"\n      }\n    ],\n    \"custom_fields\": [\n      {\n        \"name\": \"<string>\",\n        \"kind\": \"datetime\",\n        \"value\": \"<string>\"\n      },\n      {\n        \"name\": \"<string>\",\n        \"kind\": \"string\",\n        \"value\": \"<string>\"\n      }\n    ],\n    \"tags\": [\n      \"<string>\",\n      \"<string>\"\n    ],\n    \"stats\": {\n      \"emails_received\": \"<integer>\",\n      \"open_rate\": \"<double>\",\n      \"click_through_rate\": \"<double>\"\n    },\n    \"newsletter_list_ids\": [\n      \"<string>\",\n      \"<string>\"\n    ]\n  }\n}",
                              "createdAt": "2026-07-28T01:13:12.000Z",
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                                    "value": "application/json"
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                                    "key": "Accept",
                                    "value": "application/json"
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                                ],
                                "body": {
                                  "mode": "raw",
                                  "raw": "{\n  \"email\": \"<string>\",\n  \"tier\": \"free\",\n  \"premium_tier_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"premium_tiers\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"stripe_customer_id\": \"<string>\",\n  \"unsubscribe\": \"<boolean>\",\n  \"custom_fields\": [\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\",\n      \"delete\": \"<boolean>\"\n    },\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\",\n      \"delete\": \"<boolean>\"\n    }\n  ]\n}",
                                  "options": {
                                    "raw": {
                                      "headerFamily": "json",
                                      "language": "json"
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                                  }
                                },
                                "url": {
                                  "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/by_email/:email",
                                  "host": [
                                    "{{baseUrl}}"
                                  ],
                                  "path": [
                                    "publications",
                                    ":publicationId",
                                    "subscriptions",
                                    "by_email",
                                    ":email"
                                  ],
                                  "variable": [
                                    {
                                      "key": "publicationId"
                                    },
                                    {
                                      "key": "email"
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                                  ]
                                }
                              },
                              "status": "Bad Request",
                              "code": 400,
                              "_postman_previewlanguage": "json",
                              "header": [
                                {
                                  "key": "Content-Type",
                                  "value": "application/json"
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                              ],
                              "cookie": [],
                              "responseTime": null,
                              "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
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                              "updatedAt": "2026-07-28T01:13:12.000Z",
                              "uid": "35240-b628e473-1341-47d5-b2a0-0f3f880f2c6b"
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                              "name": "Resource Not Found",
                              "originalRequest": {
                                "method": "PUT",
                                "header": [
                                  {
                                    "key": "Content-Type",
                                    "value": "application/json"
                                  },
                                  {
                                    "key": "Accept",
                                    "value": "application/json"
                                  }
                                ],
                                "body": {
                                  "mode": "raw",
                                  "raw": "{\n  \"email\": \"<string>\",\n  \"tier\": \"free\",\n  \"premium_tier_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"premium_tiers\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"stripe_customer_id\": \"<string>\",\n  \"unsubscribe\": \"<boolean>\",\n  \"custom_fields\": [\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\",\n      \"delete\": \"<boolean>\"\n    },\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\",\n      \"delete\": \"<boolean>\"\n    }\n  ]\n}",
                                  "options": {
                                    "raw": {
                                      "headerFamily": "json",
                                      "language": "json"
                                    }
                                  }
                                },
                                "url": {
                                  "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/by_email/:email",
                                  "host": [
                                    "{{baseUrl}}"
                                  ],
                                  "path": [
                                    "publications",
                                    ":publicationId",
                                    "subscriptions",
                                    "by_email",
                                    ":email"
                                  ],
                                  "variable": [
                                    {
                                      "key": "publicationId"
                                    },
                                    {
                                      "key": "email"
                                    }
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                              },
                              "status": "Not Found",
                              "code": 404,
                              "_postman_previewlanguage": "json",
                              "header": [
                                {
                                  "key": "Content-Type",
                                  "value": "application/json"
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                              "cookie": [],
                              "responseTime": null,
                              "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
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                            {
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                              "name": "Rate Limit Exceeded",
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                                "method": "PUT",
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                                    "key": "Content-Type",
                                    "value": "application/json"
                                  },
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                                    "key": "Accept",
                                    "value": "application/json"
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                                ],
                                "body": {
                                  "mode": "raw",
                                  "raw": "{\n  \"email\": \"<string>\",\n  \"tier\": \"free\",\n  \"premium_tier_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"premium_tiers\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"stripe_customer_id\": \"<string>\",\n  \"unsubscribe\": \"<boolean>\",\n  \"custom_fields\": [\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\",\n      \"delete\": \"<boolean>\"\n    },\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\",\n      \"delete\": \"<boolean>\"\n    }\n  ]\n}",
                                  "options": {
                                    "raw": {
                                      "headerFamily": "json",
                                      "language": "json"
                                    }
                                  }
                                },
                                "url": {
                                  "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/by_email/:email",
                                  "host": [
                                    "{{baseUrl}}"
                                  ],
                                  "path": [
                                    "publications",
                                    ":publicationId",
                                    "subscriptions",
                                    "by_email",
                                    ":email"
                                  ],
                                  "variable": [
                                    {
                                      "key": "publicationId"
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                              "status": "Too Many Requests",
                              "code": 429,
                              "_postman_previewlanguage": "json",
                              "header": [
                                {
                                  "key": "Content-Type",
                                  "value": "application/json"
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                              "cookie": [],
                              "responseTime": null,
                              "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
                              "createdAt": "2026-07-28T01:13:12.000Z",
                              "updatedAt": "2026-07-28T01:13:12.000Z",
                              "uid": "35240-69ab314c-d3d2-447e-acb7-355618568eba"
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                            {
                              "id": "c946e9de-3db1-4234-8bfd-36117cb2509e",
                              "name": "Internal Server Error",
                              "originalRequest": {
                                "method": "PUT",
                                "header": [
                                  {
                                    "key": "Content-Type",
                                    "value": "application/json"
                                  },
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                                    "key": "Accept",
                                    "value": "application/json"
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                                ],
                                "body": {
                                  "mode": "raw",
                                  "raw": "{\n  \"email\": \"<string>\",\n  \"tier\": \"free\",\n  \"premium_tier_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"premium_tiers\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"stripe_customer_id\": \"<string>\",\n  \"unsubscribe\": \"<boolean>\",\n  \"custom_fields\": [\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\",\n      \"delete\": \"<boolean>\"\n    },\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\",\n      \"delete\": \"<boolean>\"\n    }\n  ]\n}",
                                  "options": {
                                    "raw": {
                                      "headerFamily": "json",
                                      "language": "json"
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                                  }
                                },
                                "url": {
                                  "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/by_email/:email",
                                  "host": [
                                    "{{baseUrl}}"
                                  ],
                                  "path": [
                                    "publications",
                                    ":publicationId",
                                    "subscriptions",
                                    "by_email",
                                    ":email"
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                                  "variable": [
                                    {
                                      "key": "publicationId"
                                    },
                                    {
                                      "key": "email"
                                    }
                                  ]
                                }
                              },
                              "status": "Internal Server Error",
                              "code": 500,
                              "_postman_previewlanguage": "json",
                              "header": [
                                {
                                  "key": "Content-Type",
                                  "value": "application/json"
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                              "cookie": [],
                              "responseTime": null,
                              "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
                              "createdAt": "2026-07-28T01:13:12.000Z",
                              "updatedAt": "2026-07-28T01:13:12.000Z",
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                          "createdAt": "2026-07-28T01:13:12.000Z",
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                          "uid": "35240-83de2e9b-fc3b-4fc9-8fff-937c5c37661e"
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                      ],
                      "id": "e928e14f-838e-4b51-97c4-1dd59c47c5c9",
                      "createdAt": "2026-07-28T01:13:11.000Z",
                      "updatedAt": "2026-07-28T01:13:11.000Z",
                      "uid": "35240-e928e14f-838e-4b51-97c4-1dd59c47c5c9"
                    }
                  ],
                  "id": "72e871c5-6747-42f0-ab41-6e0405d0aafd",
                  "createdAt": "2026-07-28T01:13:11.000Z",
                  "updatedAt": "2026-07-28T01:13:11.000Z",
                  "uid": "35240-72e871c5-6747-42f0-ab41-6e0405d0aafd"
                },
                {
                  "name": "{subscriptionId}",
                  "item": [
                    {
                      "name": "Get subscription by ID <Badge intent=\"info\" minimal outlined>OAuth Scope: subscriptions:read</Badge>",
                      "id": "2c1944d2-11be-42e5-b69d-196d4aa2273e",
                      "protocolProfileBehavior": {
                        "disableBodyPruning": true
                      },
                      "request": {
                        "method": "GET",
                        "header": [
                          {
                            "key": "Accept",
                            "value": "application/json"
                          }
                        ],
                        "url": {
                          "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/:subscriptionId?expand[]=referrals",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "publications",
                            ":publicationId",
                            "subscriptions",
                            ":subscriptionId"
                          ],
                          "query": [
                            {
                              "description": "Optional list of expandable objects.<br>`subscription_premium_tiers` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`tags` - Returns an array of tags that have been set on the subscription.<br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                              "key": "expand[]",
                              "value": "referrals"
                            }
                          ],
                          "variable": [
                            {
                              "id": "d429790c-4435-4397-a79b-858d8cdd13c5",
                              "key": "publicationId",
                              "value": "<string>",
                              "description": "(Required) The prefixed ID of the publication object"
                            },
                            {
                              "id": "e0c4a827-590a-41c9-9bd1-26f1093ceda3",
                              "key": "subscriptionId",
                              "value": "<string>",
                              "description": "(Required) The prefixed ID of the subscription object"
                            }
                          ]
                        },
                        "description": "<Info>In previous versions of the API, another endpoint existed to retrieve a subscription by the subscriber ID. This endpoint is now deprecated and will be removed in a future version of the API. Please use this endpoint instead. The subscription ID can be found by exporting a list of subscriptions either via the `Settings > Publications > Export Data` or by exporting a CSV in a segment.</Info> Retrieve a single subscription belonging to a specific publication."
                      },
                      "response": [
                        {
                          "id": "80047668-7af1-4e50-9b1c-480f9c1b9019",
                          "name": "OK",
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                            "method": "GET",
                            "header": [
                              {
                                "key": "Accept",
                                "value": "application/json"
                              }
                            ],
                            "url": {
                              "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/:subscriptionId?expand[]=referrals",
                              "host": [
                                "{{baseUrl}}"
                              ],
                              "path": [
                                "publications",
                                ":publicationId",
                                "subscriptions",
                                ":subscriptionId"
                              ],
                              "query": [
                                {
                                  "description": "Optional list of expandable objects.<br>`subscription_premium_tiers` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`tags` - Returns an array of tags that have been set on the subscription.<br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                                  "key": "expand[]",
                                  "value": "referrals"
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                              ],
                              "variable": [
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                                  "key": "publicationId"
                                },
                                {
                                  "key": "subscriptionId"
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                          "status": "OK",
                          "code": 200,
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                          "body": "{\n  \"data\": {\n    \"id\": \"<string>\",\n    \"email\": \"<email>\",\n    \"status\": \"invalid\",\n    \"created\": \"<integer>\",\n    \"subscription_tier\": \"premium\",\n    \"subscription_premium_tier_names\": [\n      \"<string>\",\n      \"<string>\"\n    ],\n    \"utm_source\": \"<string>\",\n    \"utm_medium\": \"<string>\",\n    \"utm_channel\": \"recommendation\",\n    \"utm_campaign\": \"<string>\",\n    \"utm_term\": \"<string>\",\n    \"utm_content\": \"<string>\",\n    \"referring_site\": \"<string>\",\n    \"referral_code\": \"<string>\",\n    \"subscription_premium_tiers\": [\n      {\n        \"id\": \"<string>\",\n        \"name\": \"<string>\",\n        \"status\": \"archived\"\n      },\n      {\n        \"id\": \"<string>\",\n        \"name\": \"<string>\",\n        \"status\": \"active\"\n      }\n    ],\n    \"custom_fields\": [\n      {\n        \"name\": \"<string>\",\n        \"kind\": \"datetime\",\n        \"value\": \"<string>\"\n      },\n      {\n        \"name\": \"<string>\",\n        \"kind\": \"string\",\n        \"value\": \"<string>\"\n      }\n    ],\n    \"tags\": [\n      \"<string>\",\n      \"<string>\"\n    ],\n    \"stats\": {\n      \"emails_received\": \"<integer>\",\n      \"open_rate\": \"<double>\",\n      \"click_through_rate\": \"<double>\"\n    },\n    \"newsletter_list_ids\": [\n      \"<string>\",\n      \"<string>\"\n    ]\n  }\n}",
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                          "originalRequest": {
                            "method": "GET",
                            "header": [
                              {
                                "key": "Accept",
                                "value": "application/json"
                              }
                            ],
                            "url": {
                              "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/:subscriptionId?expand[]=referrals",
                              "host": [
                                "{{baseUrl}}"
                              ],
                              "path": [
                                "publications",
                                ":publicationId",
                                "subscriptions",
                                ":subscriptionId"
                              ],
                              "query": [
                                {
                                  "description": "Optional list of expandable objects.<br>`subscription_premium_tiers` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`tags` - Returns an array of tags that have been set on the subscription.<br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                                  "key": "expand[]",
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                              "variable": [
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                            "method": "GET",
                            "header": [
                              {
                                "key": "Accept",
                                "value": "application/json"
                              }
                            ],
                            "url": {
                              "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/:subscriptionId?expand[]=referrals",
                              "host": [
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                              "path": [
                                "publications",
                                ":publicationId",
                                "subscriptions",
                                ":subscriptionId"
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                              "query": [
                                {
                                  "description": "Optional list of expandable objects.<br>`subscription_premium_tiers` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`tags` - Returns an array of tags that have been set on the subscription.<br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                                  "key": "expand[]",
                                  "value": "referrals"
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                              "variable": [
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                                  "key": "publicationId"
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                                  "key": "subscriptionId"
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                          },
                          "status": "Not Found",
                          "code": 404,
                          "_postman_previewlanguage": "json",
                          "header": [
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                              "key": "Content-Type",
                              "value": "application/json"
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                          ],
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                          "responseTime": null,
                          "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
                          "createdAt": "2026-07-28T01:13:12.000Z",
                          "updatedAt": "2026-07-28T01:13:12.000Z",
                          "uid": "35240-f3308685-033f-4df1-b0e1-27deb747a5f7"
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                        {
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                          "originalRequest": {
                            "method": "GET",
                            "header": [
                              {
                                "key": "Accept",
                                "value": "application/json"
                              }
                            ],
                            "url": {
                              "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/:subscriptionId?expand[]=referrals",
                              "host": [
                                "{{baseUrl}}"
                              ],
                              "path": [
                                "publications",
                                ":publicationId",
                                "subscriptions",
                                ":subscriptionId"
                              ],
                              "query": [
                                {
                                  "description": "Optional list of expandable objects.<br>`subscription_premium_tiers` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`tags` - Returns an array of tags that have been set on the subscription.<br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                                  "key": "expand[]",
                                  "value": "referrals"
                                }
                              ],
                              "variable": [
                                {
                                  "key": "publicationId"
                                },
                                {
                                  "key": "subscriptionId"
                                }
                              ]
                            }
                          },
                          "status": "Too Many Requests",
                          "code": 429,
                          "_postman_previewlanguage": "json",
                          "header": [
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                              "key": "Content-Type",
                              "value": "application/json"
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                          ],
                          "cookie": [],
                          "responseTime": null,
                          "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
                          "createdAt": "2026-07-28T01:13:12.000Z",
                          "updatedAt": "2026-07-28T01:13:12.000Z",
                          "uid": "35240-3906bce2-367a-4ef6-b376-74988f801d1f"
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                        {
                          "id": "12c70bba-9f6d-47aa-b83d-ace82b38794f",
                          "name": "Internal Server Error",
                          "originalRequest": {
                            "method": "GET",
                            "header": [
                              {
                                "key": "Accept",
                                "value": "application/json"
                              }
                            ],
                            "url": {
                              "raw": "{{baseUrl}}/publications/:publicationId/subscriptions/:subscriptionId?expand[]=referrals",
                              "host": [
                                "{{baseUrl}}"
                              ],
                              "path": [
                                "publications",
                                ":publicationId",
                                "subscriptions",
                                ":subscriptionId"
                              ],
                              "query": [
                                {
                                  "description": "Optional list of expandable objects.<br>`subscription_premium_tiers` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`tags` - Returns an array of tags that have been set on the subscription.<br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                                  "key": "expand[]",
                                  "value": "referrals"
                                }
                              ],
                              "variable": [
                                {
                                  "key": "publicationId"
                                },
                                {
                                  "key": "subscriptionId"
                                }
                              ]
                            }
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                          "raw": "{\n  \"email\": \"<string>\",\n  \"reactivate_existing\": false,\n  \"send_welcome_email\": false,\n  \"utm_source\": \"<string>\",\n  \"utm_medium\": \"<string>\",\n  \"utm_campaign\": \"<string>\",\n  \"utm_term\": \"<string>\",\n  \"utm_content\": \"<string>\",\n  \"referring_site\": \"<string>\",\n  \"referral_code\": \"<string>\",\n  \"custom_fields\": [\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\"\n    },\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\"\n    }\n  ],\n  \"double_opt_override\": \"<string>\",\n  \"tier\": \"premium\",\n  \"premium_tiers\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"premium_tier_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"stripe_customer_id\": \"<string>\",\n  \"automation_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"newsletter_list_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"skip_newsletter_list_auto_subscribe\": \"<boolean>\"\n}",
                          "options": {
                            "raw": {
                              "headerFamily": "json",
                              "language": "json"
                            }
                          }
                        },
                        "url": {
                          "raw": "{{baseUrl}}/publications/:publicationId/subscriptions",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "publications",
                            ":publicationId",
                            "subscriptions"
                          ],
                          "variable": [
                            {
                              "key": "publicationId"
                            }
                          ]
                        }
                      },
                      "status": "OK",
                      "code": 200,
                      "_postman_previewlanguage": "json",
                      "header": [
                        {
                          "key": "Content-Type",
                          "value": "application/json"
                        }
                      ],
                      "cookie": [],
                      "responseTime": null,
                      "body": "{\n  \"data\": {\n    \"id\": \"<string>\",\n    \"email\": \"<email>\",\n    \"status\": \"invalid\",\n    \"created\": \"<integer>\",\n    \"subscription_tier\": \"premium\",\n    \"subscription_premium_tier_names\": [\n      \"<string>\",\n      \"<string>\"\n    ],\n    \"utm_source\": \"<string>\",\n    \"utm_medium\": \"<string>\",\n    \"utm_channel\": \"recommendation\",\n    \"utm_campaign\": \"<string>\",\n    \"utm_term\": \"<string>\",\n    \"utm_content\": \"<string>\",\n    \"referring_site\": \"<string>\",\n    \"referral_code\": \"<string>\",\n    \"subscription_premium_tiers\": [\n      {\n        \"id\": \"<string>\",\n        \"name\": \"<string>\",\n        \"status\": \"archived\"\n      },\n      {\n        \"id\": \"<string>\",\n        \"name\": \"<string>\",\n        \"status\": \"active\"\n      }\n    ],\n    \"custom_fields\": [\n      {\n        \"name\": \"<string>\",\n        \"kind\": \"datetime\",\n        \"value\": \"<string>\"\n      },\n      {\n        \"name\": \"<string>\",\n        \"kind\": \"string\",\n        \"value\": \"<string>\"\n      }\n    ],\n    \"tags\": [\n      \"<string>\",\n      \"<string>\"\n    ],\n    \"stats\": {\n      \"emails_received\": \"<integer>\",\n      \"open_rate\": \"<double>\",\n      \"click_through_rate\": \"<double>\"\n    },\n    \"newsletter_list_ids\": [\n      \"<string>\",\n      \"<string>\"\n    ]\n  }\n}",
                      "createdAt": "2026-07-28T01:13:12.000Z",
                      "updatedAt": "2026-07-28T01:13:12.000Z",
                      "uid": "35240-4c391076-7be3-4d4c-a8df-0755c95d8e50"
                    },
                    {
                      "id": "64723cd2-8531-4420-837c-2a24f1ea03a2",
                      "name": "Bad Request",
                      "originalRequest": {
                        "method": "POST",
                        "header": [
                          {
                            "key": "Content-Type",
                            "value": "application/json"
                          },
                          {
                            "key": "Accept",
                            "value": "application/json"
                          }
                        ],
                        "body": {
                          "mode": "raw",
                          "raw": "{\n  \"email\": \"<string>\",\n  \"reactivate_existing\": false,\n  \"send_welcome_email\": false,\n  \"utm_source\": \"<string>\",\n  \"utm_medium\": \"<string>\",\n  \"utm_campaign\": \"<string>\",\n  \"utm_term\": \"<string>\",\n  \"utm_content\": \"<string>\",\n  \"referring_site\": \"<string>\",\n  \"referral_code\": \"<string>\",\n  \"custom_fields\": [\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\"\n    },\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\"\n    }\n  ],\n  \"double_opt_override\": \"<string>\",\n  \"tier\": \"premium\",\n  \"premium_tiers\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"premium_tier_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"stripe_customer_id\": \"<string>\",\n  \"automation_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"newsletter_list_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"skip_newsletter_list_auto_subscribe\": \"<boolean>\"\n}",
                          "options": {
                            "raw": {
                              "headerFamily": "json",
                              "language": "json"
                            }
                          }
                        },
                        "url": {
                          "raw": "{{baseUrl}}/publications/:publicationId/subscriptions",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "publications",
                            ":publicationId",
                            "subscriptions"
                          ],
                          "variable": [
                            {
                              "key": "publicationId"
                            }
                          ]
                        }
                      },
                      "status": "Bad Request",
                      "code": 400,
                      "_postman_previewlanguage": "json",
                      "header": [
                        {
                          "key": "Content-Type",
                          "value": "application/json"
                        }
                      ],
                      "cookie": [],
                      "responseTime": null,
                      "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
                      "createdAt": "2026-07-28T01:13:12.000Z",
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                    },
                    {
                      "id": "91f2d58d-8415-4395-b24b-dd18db728aee",
                      "name": "Resource Not Found",
                      "originalRequest": {
                        "method": "POST",
                        "header": [
                          {
                            "key": "Content-Type",
                            "value": "application/json"
                          },
                          {
                            "key": "Accept",
                            "value": "application/json"
                          }
                        ],
                        "body": {
                          "mode": "raw",
                          "raw": "{\n  \"email\": \"<string>\",\n  \"reactivate_existing\": false,\n  \"send_welcome_email\": false,\n  \"utm_source\": \"<string>\",\n  \"utm_medium\": \"<string>\",\n  \"utm_campaign\": \"<string>\",\n  \"utm_term\": \"<string>\",\n  \"utm_content\": \"<string>\",\n  \"referring_site\": \"<string>\",\n  \"referral_code\": \"<string>\",\n  \"custom_fields\": [\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\"\n    },\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\"\n    }\n  ],\n  \"double_opt_override\": \"<string>\",\n  \"tier\": \"premium\",\n  \"premium_tiers\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"premium_tier_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"stripe_customer_id\": \"<string>\",\n  \"automation_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"newsletter_list_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"skip_newsletter_list_auto_subscribe\": \"<boolean>\"\n}",
                          "options": {
                            "raw": {
                              "headerFamily": "json",
                              "language": "json"
                            }
                          }
                        },
                        "url": {
                          "raw": "{{baseUrl}}/publications/:publicationId/subscriptions",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "publications",
                            ":publicationId",
                            "subscriptions"
                          ],
                          "variable": [
                            {
                              "key": "publicationId"
                            }
                          ]
                        }
                      },
                      "status": "Not Found",
                      "code": 404,
                      "_postman_previewlanguage": "json",
                      "header": [
                        {
                          "key": "Content-Type",
                          "value": "application/json"
                        }
                      ],
                      "cookie": [],
                      "responseTime": null,
                      "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
                      "createdAt": "2026-07-28T01:13:12.000Z",
                      "updatedAt": "2026-07-28T01:13:12.000Z",
                      "uid": "35240-91f2d58d-8415-4395-b24b-dd18db728aee"
                    },
                    {
                      "id": "7ba89ee8-5057-412f-8281-4505c7ea4ea4",
                      "name": "Rate Limit Exceeded",
                      "originalRequest": {
                        "method": "POST",
                        "header": [
                          {
                            "key": "Content-Type",
                            "value": "application/json"
                          },
                          {
                            "key": "Accept",
                            "value": "application/json"
                          }
                        ],
                        "body": {
                          "mode": "raw",
                          "raw": "{\n  \"email\": \"<string>\",\n  \"reactivate_existing\": false,\n  \"send_welcome_email\": false,\n  \"utm_source\": \"<string>\",\n  \"utm_medium\": \"<string>\",\n  \"utm_campaign\": \"<string>\",\n  \"utm_term\": \"<string>\",\n  \"utm_content\": \"<string>\",\n  \"referring_site\": \"<string>\",\n  \"referral_code\": \"<string>\",\n  \"custom_fields\": [\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\"\n    },\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\"\n    }\n  ],\n  \"double_opt_override\": \"<string>\",\n  \"tier\": \"premium\",\n  \"premium_tiers\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"premium_tier_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"stripe_customer_id\": \"<string>\",\n  \"automation_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"newsletter_list_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"skip_newsletter_list_auto_subscribe\": \"<boolean>\"\n}",
                          "options": {
                            "raw": {
                              "headerFamily": "json",
                              "language": "json"
                            }
                          }
                        },
                        "url": {
                          "raw": "{{baseUrl}}/publications/:publicationId/subscriptions",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "publications",
                            ":publicationId",
                            "subscriptions"
                          ],
                          "variable": [
                            {
                              "key": "publicationId"
                            }
                          ]
                        }
                      },
                      "status": "Too Many Requests",
                      "code": 429,
                      "_postman_previewlanguage": "json",
                      "header": [
                        {
                          "key": "Content-Type",
                          "value": "application/json"
                        }
                      ],
                      "cookie": [],
                      "responseTime": null,
                      "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
                      "createdAt": "2026-07-28T01:13:12.000Z",
                      "updatedAt": "2026-07-28T01:13:12.000Z",
                      "uid": "35240-7ba89ee8-5057-412f-8281-4505c7ea4ea4"
                    },
                    {
                      "id": "dd738b0f-f81c-45d5-ac74-7f230b7f29b4",
                      "name": "Internal Server Error",
                      "originalRequest": {
                        "method": "POST",
                        "header": [
                          {
                            "key": "Content-Type",
                            "value": "application/json"
                          },
                          {
                            "key": "Accept",
                            "value": "application/json"
                          }
                        ],
                        "body": {
                          "mode": "raw",
                          "raw": "{\n  \"email\": \"<string>\",\n  \"reactivate_existing\": false,\n  \"send_welcome_email\": false,\n  \"utm_source\": \"<string>\",\n  \"utm_medium\": \"<string>\",\n  \"utm_campaign\": \"<string>\",\n  \"utm_term\": \"<string>\",\n  \"utm_content\": \"<string>\",\n  \"referring_site\": \"<string>\",\n  \"referral_code\": \"<string>\",\n  \"custom_fields\": [\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\"\n    },\n    {\n      \"name\": \"<string>\",\n      \"value\": \"<string>\"\n    }\n  ],\n  \"double_opt_override\": \"<string>\",\n  \"tier\": \"premium\",\n  \"premium_tiers\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"premium_tier_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"stripe_customer_id\": \"<string>\",\n  \"automation_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"newsletter_list_ids\": [\n    \"<string>\",\n    \"<string>\"\n  ],\n  \"skip_newsletter_list_auto_subscribe\": \"<boolean>\"\n}",
                          "options": {
                            "raw": {
                              "headerFamily": "json",
                              "language": "json"
                            }
                          }
                        },
                        "url": {
                          "raw": "{{baseUrl}}/publications/:publicationId/subscriptions",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "publications",
                            ":publicationId",
                            "subscriptions"
                          ],
                          "variable": [
                            {
                              "key": "publicationId"
                            }
                          ]
                        }
                      },
                      "status": "Internal Server Error",
                      "code": 500,
                      "_postman_previewlanguage": "json",
                      "header": [
                        {
                          "key": "Content-Type",
                          "value": "application/json"
                        }
                      ],
                      "cookie": [],
                      "responseTime": null,
                      "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
                      "createdAt": "2026-07-28T01:13:12.000Z",
                      "updatedAt": "2026-07-28T01:13:12.000Z",
                      "uid": "35240-dd738b0f-f81c-45d5-ac74-7f230b7f29b4"
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                  ],
                  "createdAt": "2026-07-28T01:13:12.000Z",
                  "updatedAt": "2026-07-28T01:13:12.000Z",
                  "uid": "35240-66f48225-0e22-4f5e-81a2-2079061e7552"
                },
                {
                  "name": "List subscriptions <Badge intent=\"info\" minimal outlined>OAuth Scope: subscriptions:read</Badge>",
                  "id": "518dbe9b-addd-4700-ab2b-a78792a837c5",
                  "protocolProfileBehavior": {
                    "disableBodyPruning": true
                  },
                  "request": {
                    "method": "GET",
                    "header": [
                      {
                        "key": "Accept",
                        "value": "application/json"
                      }
                    ],
                    "url": {
                      "raw": "{{baseUrl}}/publications/:publicationId/subscriptions?expand[]=stats&status=all&tier=all&premium_tiers[]=<string>&premium_tier_ids[]=<string>&limit=<integer>&cursor=<string>&page=<integer>&email=<string>&order_by=created&direction=asc&creation_date=<string>",
                      "host": [
                        "{{baseUrl}}"
                      ],
                      "path": [
                        "publications",
                        ":publicationId",
                        "subscriptions"
                      ],
                      "query": [
                        {
                          "description": "Optional list of expandable objects.<br>`subscription_premium_tiers ` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                          "key": "expand[]",
                          "value": "stats"
                        },
                        {
                          "description": "Optionally filter the results by a status",
                          "key": "status",
                          "value": "all"
                        },
                        {
                          "description": "Optionally filter the results by a their tier",
                          "key": "tier",
                          "value": "all"
                        },
                        {
                          "description": "Optionally filter the results by one or multiple premium tiers",
                          "key": "premium_tiers[]",
                          "value": "<string>"
                        },
                        {
                          "description": "Optionally filter the results by one or multiple premium tier ids",
                          "key": "premium_tier_ids[]",
                          "value": "<string>"
                        },
                        {
                          "description": "A limit on the number of objects to be returned. The limit can range between 1 and 100, and the default is 10.",
                          "key": "limit",
                          "value": "<integer>"
                        },
                        {
                          "description": "**Cursor-based pagination (recommended)**: Use this opaque cursor token to fetch the next page of results. When provided, pagination will use cursor-based method which is more efficient and consistent than offset-based pagination. See the [Pagination Guide](/welcome/pagination) for more details.",
                          "key": "cursor",
                          "value": "<string>"
                        },
                        {
                          "description": "**Offset-based pagination (deprecated)**: Page number for offset-based pagination. This method is deprecated and limited to 100 pages maximum. Please migrate to cursor-based pagination using the `cursor` parameter. If not specified, results 1-10 from page 1 will be returned. See the [Pagination Guide](/welcome/pagination) for migration guidance.",
                          "key": "page",
                          "value": "<integer>"
                        },
                        {
                          "description": "Optional email address to find a subscription.<br>This param must be an exact match and is case insensitive.",
                          "key": "email",
                          "value": "<string>"
                        },
                        {
                          "description": "The field that the results are sorted by. Defaults to created<br> `created` - The time in which the subscription was first created.<br>",
                          "key": "order_by",
                          "value": "created"
                        },
                        {
                          "description": "The direction that the results are sorted in. Defaults to asc<br> `asc` - Ascending, sorts from smallest to largest.<br> `desc` - Descending, sorts from largest to smallest.",
                          "key": "direction",
                          "value": "asc"
                        },
                        {
                          "description": "Optional date entry (in the format YYYY/MM/DD) that filters returned subscriptions by their creation date.",
                          "key": "creation_date",
                          "value": "<string>"
                        }
                      ],
                      "variable": [
                        {
                          "id": "10aa9d37-c3ca-48ba-8d50-a6abe8320644",
                          "key": "publicationId",
                          "value": "<string>",
                          "description": "(Required) The prefixed ID of the publication object"
                        }
                      ]
                    },
                    "description": "Retrieve all subscriptions belonging to a specific publication.\n\n<Info> **New**: This endpoint now supports cursor-based pagination for better performance and consistency. Use the `cursor` parameter instead of `page` for new integrations. </Info>\n<Warning> **Deprecation Notice**: Offset-based pagination (using `page` parameter) is deprecated and limited to 100 pages maximum. Please migrate to cursor-based pagination. See our [Pagination Guide](/welcome/pagination) for details. </Warning>"
                  },
                  "response": [
                    {
                      "id": "144869f6-bc98-4aa9-955b-0783bba2e4dc",
                      "name": "OK",
                      "originalRequest": {
                        "method": "GET",
                        "header": [
                          {
                            "key": "Accept",
                            "value": "application/json"
                          }
                        ],
                        "url": {
                          "raw": "{{baseUrl}}/publications/:publicationId/subscriptions?expand[]=stats&status=all&tier=all&premium_tiers[]=<string>&premium_tier_ids[]=<string>&limit=<integer>&cursor=<string>&page=<integer>&email=<string>&order_by=created&direction=asc&creation_date=<string>",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "publications",
                            ":publicationId",
                            "subscriptions"
                          ],
                          "query": [
                            {
                              "description": "Optional list of expandable objects.<br>`subscription_premium_tiers ` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                              "key": "expand[]",
                              "value": "stats"
                            },
                            {
                              "description": "Optionally filter the results by a status",
                              "key": "status",
                              "value": "all"
                            },
                            {
                              "description": "Optionally filter the results by a their tier",
                              "key": "tier",
                              "value": "all"
                            },
                            {
                              "description": "Optionally filter the results by one or multiple premium tiers",
                              "key": "premium_tiers[]",
                              "value": "<string>"
                            },
                            {
                              "description": "Optionally filter the results by one or multiple premium tier ids",
                              "key": "premium_tier_ids[]",
                              "value": "<string>"
                            },
                            {
                              "description": "A limit on the number of objects to be returned. The limit can range between 1 and 100, and the default is 10.",
                              "key": "limit",
                              "value": "<integer>"
                            },
                            {
                              "description": "**Cursor-based pagination (recommended)**: Use this opaque cursor token to fetch the next page of results. When provided, pagination will use cursor-based method which is more efficient and consistent than offset-based pagination. See the [Pagination Guide](/welcome/pagination) for more details.",
                              "key": "cursor",
                              "value": "<string>"
                            },
                            {
                              "description": "**Offset-based pagination (deprecated)**: Page number for offset-based pagination. This method is deprecated and limited to 100 pages maximum. Please migrate to cursor-based pagination using the `cursor` parameter. If not specified, results 1-10 from page 1 will be returned. See the [Pagination Guide](/welcome/pagination) for migration guidance.",
                              "key": "page",
                              "value": "<integer>"
                            },
                            {
                              "description": "Optional email address to find a subscription.<br>This param must be an exact match and is case insensitive.",
                              "key": "email",
                              "value": "<string>"
                            },
                            {
                              "description": "The field that the results are sorted by. Defaults to created<br> `created` - The time in which the subscription was first created.<br>",
                              "key": "order_by",
                              "value": "created"
                            },
                            {
                              "description": "The direction that the results are sorted in. Defaults to asc<br> `asc` - Ascending, sorts from smallest to largest.<br> `desc` - Descending, sorts from largest to smallest.",
                              "key": "direction",
                              "value": "asc"
                            },
                            {
                              "description": "Optional date entry (in the format YYYY/MM/DD) that filters returned subscriptions by their creation date.",
                              "key": "creation_date",
                              "value": "<string>"
                            }
                          ],
                          "variable": [
                            {
                              "key": "publicationId"
                            }
                          ]
                        }
                      },
                      "status": "OK",
                      "code": 200,
                      "_postman_previewlanguage": "json",
                      "header": [
                        {
                          "key": "Content-Type",
                          "value": "application/json"
                        }
                      ],
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                      "body": "{\n  \"data\": [\n    {\n      \"id\": \"<string>\",\n      \"email\": \"<email>\",\n      \"status\": \"pending\",\n      \"created\": \"<integer>\",\n      \"subscription_tier\": \"free\",\n      \"subscription_premium_tier_names\": [\n        \"<string>\",\n        \"<string>\"\n      ],\n      \"utm_source\": \"<string>\",\n      \"utm_medium\": \"<string>\",\n      \"utm_channel\": \"product\",\n      \"utm_campaign\": \"<string>\",\n      \"utm_term\": \"<string>\",\n      \"utm_content\": \"<string>\",\n      \"referring_site\": \"<string>\",\n      \"referral_code\": \"<string>\",\n      \"subscription_premium_tiers\": [\n        {\n          \"id\": \"<string>\",\n          \"name\": \"<string>\",\n          \"status\": \"archived\"\n        },\n        {\n          \"id\": \"<string>\",\n          \"name\": \"<string>\",\n          \"status\": \"active\"\n        }\n      ],\n      \"custom_fields\": [\n        {\n          \"name\": \"<string>\",\n          \"kind\": \"datetime\",\n          \"value\": \"<string>\"\n        },\n        {\n          \"name\": \"<string>\",\n          \"kind\": \"date\",\n          \"value\": \"<string>\"\n        }\n      ],\n      \"tags\": [\n        \"<string>\",\n        \"<string>\"\n      ],\n      \"stats\": {\n        \"emails_received\": \"<integer>\",\n        \"open_rate\": \"<double>\",\n        \"click_through_rate\": \"<double>\"\n      },\n      \"newsletter_list_ids\": [\n        \"<string>\",\n        \"<string>\"\n      ]\n    },\n    {\n      \"id\": \"<string>\",\n      \"email\": \"<email>\",\n      \"status\": \"invalid\",\n      \"created\": \"<integer>\",\n      \"subscription_tier\": \"premium\",\n      \"subscription_premium_tier_names\": [\n        \"<string>\",\n        \"<string>\"\n      ],\n      \"utm_source\": \"<string>\",\n      \"utm_medium\": \"<string>\",\n      \"utm_channel\": \"\",\n      \"utm_campaign\": \"<string>\",\n      \"utm_term\": \"<string>\",\n      \"utm_content\": \"<string>\",\n      \"referring_site\": \"<string>\",\n      \"referral_code\": \"<string>\",\n      \"subscription_premium_tiers\": [\n        {\n          \"id\": \"<string>\",\n          \"name\": \"<string>\",\n          \"status\": \"active\"\n        },\n        {\n          \"id\": \"<string>\",\n          \"name\": \"<string>\",\n          \"status\": \"archived\"\n        }\n      ],\n      \"custom_fields\": [\n        {\n          \"name\": \"<string>\",\n          \"kind\": \"double\",\n          \"value\": \"<string>\"\n        },\n        {\n          \"name\": \"<string>\",\n          \"kind\": \"datetime\",\n          \"value\": \"<string>\"\n        }\n      ],\n      \"tags\": [\n        \"<string>\",\n        \"<string>\"\n      ],\n      \"stats\": {\n        \"emails_received\": \"<integer>\",\n        \"open_rate\": \"<double>\",\n        \"click_through_rate\": \"<double>\"\n      },\n      \"newsletter_list_ids\": [\n        \"<string>\",\n        \"<string>\"\n      ]\n    }\n  ],\n  \"limit\": \"<integer>\",\n  \"page\": 1,\n  \"total_pages\": \"<integer>\",\n  \"has_more\": \"<boolean>\",\n  \"next_cursor\": \"<string>\",\n  \"total_results\": \"<integer>\"\n}",
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                      "updatedAt": "2026-07-28T01:13:12.000Z",
                      "uid": "35240-144869f6-bc98-4aa9-955b-0783bba2e4dc"
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                      "name": "Bad Request",
                      "originalRequest": {
                        "method": "GET",
                        "header": [
                          {
                            "key": "Accept",
                            "value": "application/json"
                          }
                        ],
                        "url": {
                          "raw": "{{baseUrl}}/publications/:publicationId/subscriptions?expand[]=stats&status=all&tier=all&premium_tiers[]=<string>&premium_tier_ids[]=<string>&limit=<integer>&cursor=<string>&page=<integer>&email=<string>&order_by=created&direction=asc&creation_date=<string>",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "publications",
                            ":publicationId",
                            "subscriptions"
                          ],
                          "query": [
                            {
                              "description": "Optional list of expandable objects.<br>`subscription_premium_tiers ` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                              "key": "expand[]",
                              "value": "stats"
                            },
                            {
                              "description": "Optionally filter the results by a status",
                              "key": "status",
                              "value": "all"
                            },
                            {
                              "description": "Optionally filter the results by a their tier",
                              "key": "tier",
                              "value": "all"
                            },
                            {
                              "description": "Optionally filter the results by one or multiple premium tiers",
                              "key": "premium_tiers[]",
                              "value": "<string>"
                            },
                            {
                              "description": "Optionally filter the results by one or multiple premium tier ids",
                              "key": "premium_tier_ids[]",
                              "value": "<string>"
                            },
                            {
                              "description": "A limit on the number of objects to be returned. The limit can range between 1 and 100, and the default is 10.",
                              "key": "limit",
                              "value": "<integer>"
                            },
                            {
                              "description": "**Cursor-based pagination (recommended)**: Use this opaque cursor token to fetch the next page of results. When provided, pagination will use cursor-based method which is more efficient and consistent than offset-based pagination. See the [Pagination Guide](/welcome/pagination) for more details.",
                              "key": "cursor",
                              "value": "<string>"
                            },
                            {
                              "description": "**Offset-based pagination (deprecated)**: Page number for offset-based pagination. This method is deprecated and limited to 100 pages maximum. Please migrate to cursor-based pagination using the `cursor` parameter. If not specified, results 1-10 from page 1 will be returned. See the [Pagination Guide](/welcome/pagination) for migration guidance.",
                              "key": "page",
                              "value": "<integer>"
                            },
                            {
                              "description": "Optional email address to find a subscription.<br>This param must be an exact match and is case insensitive.",
                              "key": "email",
                              "value": "<string>"
                            },
                            {
                              "description": "The field that the results are sorted by. Defaults to created<br> `created` - The time in which the subscription was first created.<br>",
                              "key": "order_by",
                              "value": "created"
                            },
                            {
                              "description": "The direction that the results are sorted in. Defaults to asc<br> `asc` - Ascending, sorts from smallest to largest.<br> `desc` - Descending, sorts from largest to smallest.",
                              "key": "direction",
                              "value": "asc"
                            },
                            {
                              "description": "Optional date entry (in the format YYYY/MM/DD) that filters returned subscriptions by their creation date.",
                              "key": "creation_date",
                              "value": "<string>"
                            }
                          ],
                          "variable": [
                            {
                              "key": "publicationId"
                            }
                          ]
                        }
                      },
                      "status": "Bad Request",
                      "code": 400,
                      "_postman_previewlanguage": "json",
                      "header": [
                        {
                          "key": "Content-Type",
                          "value": "application/json"
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                      ],
                      "cookie": [],
                      "responseTime": null,
                      "body": "{\n  \"status\": \"<integer>\",\n  \"statusText\": \"<string>\",\n  \"errors\": [\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    },\n    {\n      \"message\": \"<string>\",\n      \"code\": \"<string>\"\n    }\n  ]\n}",
                      "createdAt": "2026-07-28T01:13:12.000Z",
                      "updatedAt": "2026-07-28T01:13:12.000Z",
                      "uid": "35240-65aadf00-e5ee-4e9c-a091-9456c75bbeda"
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                    {
                      "id": "e7b2d115-d72c-46be-bc46-24c3caf7537b",
                      "name": "Resource Not Found",
                      "originalRequest": {
                        "method": "GET",
                        "header": [
                          {
                            "key": "Accept",
                            "value": "application/json"
                          }
                        ],
                        "url": {
                          "raw": "{{baseUrl}}/publications/:publicationId/subscriptions?expand[]=stats&status=all&tier=all&premium_tiers[]=<string>&premium_tier_ids[]=<string>&limit=<integer>&cursor=<string>&page=<integer>&email=<string>&order_by=created&direction=asc&creation_date=<string>",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "publications",
                            ":publicationId",
                            "subscriptions"
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                          "query": [
                            {
                              "description": "Optional list of expandable objects.<br>`subscription_premium_tiers ` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                              "key": "expand[]",
                              "value": "stats"
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                            {
                              "description": "Optionally filter the results by a status",
                              "key": "status",
                              "value": "all"
                            },
                            {
                              "description": "Optionally filter the results by a their tier",
                              "key": "tier",
                              "value": "all"
                            },
                            {
                              "description": "Optionally filter the results by one or multiple premium tiers",
                              "key": "premium_tiers[]",
                              "value": "<string>"
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                            {
                              "description": "Optionally filter the results by one or multiple premium tier ids",
                              "key": "premium_tier_ids[]",
                              "value": "<string>"
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                            {
                              "description": "A limit on the number of objects to be returned. The limit can range between 1 and 100, and the default is 10.",
                              "key": "limit",
                              "value": "<integer>"
                            },
                            {
                              "description": "**Cursor-based pagination (recommended)**: Use this opaque cursor token to fetch the next page of results. When provided, pagination will use cursor-based method which is more efficient and consistent than offset-based pagination. See the [Pagination Guide](/welcome/pagination) for more details.",
                              "key": "cursor",
                              "value": "<string>"
                            },
                            {
                              "description": "**Offset-based pagination (deprecated)**: Page number for offset-based pagination. This method is deprecated and limited to 100 pages maximum. Please migrate to cursor-based pagination using the `cursor` parameter. If not specified, results 1-10 from page 1 will be returned. See the [Pagination Guide](/welcome/pagination) for migration guidance.",
                              "key": "page",
                              "value": "<integer>"
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                            {
                              "description": "Optional email address to find a subscription.<br>This param must be an exact match and is case insensitive.",
                              "key": "email",
                              "value": "<string>"
                            },
                            {
                              "description": "The field that the results are sorted by. Defaults to created<br> `created` - The time in which the subscription was first created.<br>",
                              "key": "order_by",
                              "value": "created"
                            },
                            {
                              "description": "The direction that the results are sorted in. Defaults to asc<br> `asc` - Ascending, sorts from smallest to largest.<br> `desc` - Descending, sorts from largest to smallest.",
                              "key": "direction",
                              "value": "asc"
                            },
                            {
                              "description": "Optional date entry (in the format YYYY/MM/DD) that filters returned subscriptions by their creation date.",
                              "key": "creation_date",
                              "value": "<string>"
                            }
                          ],
                          "variable": [
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                              "key": "publicationId"
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                        }
                      },
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                      "code": 404,
                      "_postman_previewlanguage": "json",
                      "header": [
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                          "value": "application/json"
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                    {
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                      "name": "Rate Limit Exceeded",
                      "originalRequest": {
                        "method": "GET",
                        "header": [
                          {
                            "key": "Accept",
                            "value": "application/json"
                          }
                        ],
                        "url": {
                          "raw": "{{baseUrl}}/publications/:publicationId/subscriptions?expand[]=stats&status=all&tier=all&premium_tiers[]=<string>&premium_tier_ids[]=<string>&limit=<integer>&cursor=<string>&page=<integer>&email=<string>&order_by=created&direction=asc&creation_date=<string>",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "publications",
                            ":publicationId",
                            "subscriptions"
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                          "query": [
                            {
                              "description": "Optional list of expandable objects.<br>`subscription_premium_tiers ` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                              "key": "expand[]",
                              "value": "stats"
                            },
                            {
                              "description": "Optionally filter the results by a status",
                              "key": "status",
                              "value": "all"
                            },
                            {
                              "description": "Optionally filter the results by a their tier",
                              "key": "tier",
                              "value": "all"
                            },
                            {
                              "description": "Optionally filter the results by one or multiple premium tiers",
                              "key": "premium_tiers[]",
                              "value": "<string>"
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                            {
                              "description": "Optionally filter the results by one or multiple premium tier ids",
                              "key": "premium_tier_ids[]",
                              "value": "<string>"
                            },
                            {
                              "description": "A limit on the number of objects to be returned. The limit can range between 1 and 100, and the default is 10.",
                              "key": "limit",
                              "value": "<integer>"
                            },
                            {
                              "description": "**Cursor-based pagination (recommended)**: Use this opaque cursor token to fetch the next page of results. When provided, pagination will use cursor-based method which is more efficient and consistent than offset-based pagination. See the [Pagination Guide](/welcome/pagination) for more details.",
                              "key": "cursor",
                              "value": "<string>"
                            },
                            {
                              "description": "**Offset-based pagination (deprecated)**: Page number for offset-based pagination. This method is deprecated and limited to 100 pages maximum. Please migrate to cursor-based pagination using the `cursor` parameter. If not specified, results 1-10 from page 1 will be returned. See the [Pagination Guide](/welcome/pagination) for migration guidance.",
                              "key": "page",
                              "value": "<integer>"
                            },
                            {
                              "description": "Optional email address to find a subscription.<br>This param must be an exact match and is case insensitive.",
                              "key": "email",
                              "value": "<string>"
                            },
                            {
                              "description": "The field that the results are sorted by. Defaults to created<br> `created` - The time in which the subscription was first created.<br>",
                              "key": "order_by",
                              "value": "created"
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                            {
                              "description": "The direction that the results are sorted in. Defaults to asc<br> `asc` - Ascending, sorts from smallest to largest.<br> `desc` - Descending, sorts from largest to smallest.",
                              "key": "direction",
                              "value": "asc"
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                            {
                              "description": "Optional date entry (in the format YYYY/MM/DD) that filters returned subscriptions by their creation date.",
                              "key": "creation_date",
                              "value": "<string>"
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                          "variable": [
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                      "_postman_previewlanguage": "json",
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                      "originalRequest": {
                        "method": "GET",
                        "header": [
                          {
                            "key": "Accept",
                            "value": "application/json"
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                        ],
                        "url": {
                          "raw": "{{baseUrl}}/publications/:publicationId/subscriptions?expand[]=stats&status=all&tier=all&premium_tiers[]=<string>&premium_tier_ids[]=<string>&limit=<integer>&cursor=<string>&page=<integer>&email=<string>&order_by=created&direction=asc&creation_date=<string>",
                          "host": [
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                          "path": [
                            "publications",
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                          "query": [
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                              "description": "Optional list of expandable objects.<br>`subscription_premium_tiers ` - Returns an array of tiers the subscription is associated with.<br>`referrals` - Returns an array of subscriptions with limited data - `id`, `email`, and `status`. These are the subscriptions that were referred by this subscription.<br>`stats` - Returns statistics about the subscription(s).<br>`custom_fields` - Returns an array of custom field values that have been set on the subscription. <br>`newsletter_lists` - Returns an array of newsletter list prefixed IDs the subscription is actively subscribed to.",
                              "key": "expand[]",
                              "value": "stats"
                            },
                            {
                              "description": "Optionally filter the results by a status",
                              "key": "status",
                              "value": "all"
                            },
                            {
                              "description": "Optionally filter the results by a their tier",
                              "key": "tier",
                              "value": "all"
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                            {
                              "description": "Optionally filter the results by one or multiple premium tiers",
                              "key": "premium_tiers[]",
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                              "description": "Optionally filter the results by one or multiple premium tier ids",
                              "key": "premium_tier_ids[]",
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                              "description": "A limit on the number of objects to be returned. The limit can range between 1 and 100, and the default is 10.",
                              "key": "limit",
                              "value": "<integer>"
                            },
                            {
                              "description": "**Cursor-based pagination (recommended)**: Use this opaque cursor token to fetch the next page of results. When provided, pagination will use cursor-based method which is more efficient and consistent than offset-based pagination. See the [Pagination Guide](/welcome/pagination) for more details.",
                              "key": "cursor",
                              "value": "<string>"
                            },
                            {
                              "description": "**Offset-based pagination (deprecated)**: Page number for offset-based pagination. This method is deprecated and limited to 100 pages maximum. Please migrate to cursor-based pagination using the `cursor` parameter. If not specified, results 1-10 from page 1 will be returned. See the [Pagination Guide](/welcome/pagination) for migration guidance.",
                              "key": "page",
                              "value": "<integer>"
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                            {
                              "description": "Optional email address to find a subscription.<br>This param must be an exact match and is case insensitive.",
                              "key": "email",
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                              "description": "The field that the results are sorted by. Defaults to created<br> `created` - The time in which the subscription was first created.<br>",
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                              "key": "direction",
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                            {
                              "description": "Optional date entry (in the format YYYY/MM/DD) that filters returned subscriptions by their creation date.",
                              "key": "creation_date",
                              "value": "<string>"
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                          "variable": [
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                      "_postman_previewlanguage": "json",
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  "variable": [
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      "value": "https://api.beehiiv.com/v2"
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}