---
title: "Changes to Cancel message"
method: POST
path: "/messages/{message_id}/cancel"
---

# Changes to Cancel message

`POST /messages/{message_id}/cancel`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 4 of 55 revisions.

- **2026-07-29** `f76bed79a913`: 2 info
- **2026-03-12** `19330fca8fa9`: 4 breaking
- **2025-10-17** `e67d02739533`: 2 info
- **2025-10-07** `7143ea51f307`: 3 warning

## Changes

- **2026-07-29** `f76bed79a913`: 2 info
  - api tag `Messages` added
  - api tag `Sent Messages` removed
- **2026-03-12** `19330fca8fa9`: 4 breaking
  - the response property `clicked` became optional for the status `200`
  - the response property `delivered` became optional for the status `200`
  - the response property `opened` became optional for the status `200`
  - the response property `sent` became optional for the status `200`
- **2025-10-17** `e67d02739533`: 2 info
  - api tag `Sent Messages` added
  - api tag `Messages` removed
- **2025-10-07** `7143ea51f307`: 3 warning
  - added the new `BOUNCED` enum value to the `reason` response property for the response status `200`
  - added the new `FAILED` enum value to the `reason` response property for the response status `200`
  - added the new `OPT_IN_REQUIRED` enum value to the `reason` response property for the response status `200`

---

[Operation](https://skmtc.dev/trycourier/apis/courier/docs/messages/:message_id/cancel/post.md) - [API](https://skmtc.dev/trycourier/apis/courier.md) - [Page](https://skmtc.dev/trycourier/apis/courier/changes/messages/:message_id/cancel/post)