---
title: "Changes to Schedule campaign"
method: POST
path: "/campaigns/{campaignId}/schedule"
---

# Changes to Schedule campaign

`POST /campaigns/{campaignId}/schedule`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 11 of 150 revisions.

- **2026-10-16** `db3873ca3d4d`: 4 info
- **2026-09-17** `e93563b0d37e`: 3 info
- **2026-09-08** `f1d8cfd9faaf`: 3 breaking, 1 info
- **2026-08-26** `c78765f7e84f`: 1 info
- **2026-08-19** `ba3a29c6eb33`: 4 info
- **2026-08-18** `8fbabe82a04d`: 4 info
- **2026-08-16** `6fd2903b91ce`: 4 info
- **2026-08-13** `fc5624c7d57a`: 1 info
- **2026-08-02** `36f92fc0caa2`: 4 breaking
- **2026-07-03** `7264ea552df4`: 1 info
- **2026-05-15** `b040bb8c6608`: 1 info

## Changes

- **2026-10-16** `db3873ca3d4d`: 4 info
  - added the optional property `issues` to the response with the `400` status
  - added the optional property `issues` to the response with the `401` status
  - added the optional property `issues` to the response with the `404` status
  - added the optional property `issues` to the response with the `409` status
- **2026-09-17** `e93563b0d37e`: 3 info
  - added the new optional request property `maxRecipients`
  - added the optional property `campaign/estimatedRecipientCount` to the response with the `200` status
  - added the optional property `campaign/maxRecipients` to the response with the `200` status
- **2026-09-08** `f1d8cfd9faaf`: 3 breaking, 1 info
  - the request property `recurringInterval` became not nullable
  - the request property `scheduledTimezone` became not nullable
  - the request property `spreadOverHours` became not nullable
  - added the new `undefined` enum value to the request property `recurringInterval`
- **2026-08-26** `c78765f7e84f`: 1 info
  - added the new optional request property `sendTimeWindowHours`
- **2026-08-19** `ba3a29c6eb33`: 4 info
  - added the optional property `retryable` to the response with the `400` status
  - added the optional property `retryable` to the response with the `401` status
  - added the optional property `retryable` to the response with the `404` status
  - added the optional property `retryable` to the response with the `409` status
- **2026-08-18** `8fbabe82a04d`: 4 info
  - added the new optional request property `scheduledTimezone`
  - added the new optional request property `sendInRecipientTimezone`
  - added the optional property `campaign/scheduledTimezone` to the response with the `200` status
  - added the optional property `campaign/sendInRecipientTimezone` to the response with the `200` status
- **2026-08-16** `6fd2903b91ce`: 4 info
  - added the optional property `code` to the response with the `400` status
  - added the optional property `code` to the response with the `401` status
  - added the optional property `code` to the response with the `404` status
  - added the optional property `code` to the response with the `409` status
- **2026-08-13** `fc5624c7d57a`: 1 info
  - added the new optional request property `listIds`
- **2026-08-02** `36f92fc0caa2`: 4 breaking
  - the response property `success` became optional for the status `400`
  - the response property `success` became optional for the status `401`
  - the response property `success` became optional for the status `404`
  - the response property `success` became optional for the status `409`
- **2026-07-03** `7264ea552df4`: 1 info
  - added the new optional request property `recurringInterval`
- **2026-05-15** `b040bb8c6608`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/sequenzy/apis/sequenzy-api/docs/campaigns/:campaignId/schedule/post.md) - [API](https://skmtc.dev/sequenzy/apis/sequenzy-api.md) - [Page](https://skmtc.dev/sequenzy/apis/sequenzy-api/changes/campaigns/:campaignId/schedule/post)