---
title: "Changes to Cancel a fax"
method: POST
path: "/faxes/{id}/actions/cancel"
---

# Changes to Cancel a fax

`POST /faxes/{id}/actions/cancel`

> Every recorded change to this operation, newest first.
> 314 revisions in range; 1 not diffed.

## Timeline

Changed in 8 of 314 revisions.

- **2026-10-21** `19db5ee4ec59`: 3 breaking, 3 info
- **2026-09-16** `a6a61a29ecdd`: 3 breaking
- **2026-08-17** `1571b0380bd7`: 3 breaking
- **2026-08-04** `8f5f4e537994`: 3 breaking
- **2026-02-04** `a3a64a14ed68`: 1 warning, 3 info
- **2026-02-03** `6a9394d3d3bb`: 2 breaking, 1 warning, 1 info
- **2026-01-30** `9584e4796c6d`: 1 warning, 1 info
- **2025-12-12** `97b6436446db`: 2 info

## Changes

- **2026-10-21** `19db5ee4ec59`: 3 breaking, 3 info
  - the `errors/items/code` response's property type changed from `integer` to `string`, and format from `int32` to no format for status `404`
  - the `errors/items/code` response's property type changed from `integer` to `string`, and format from `int32` to no format for status `422`
  - the `errors/items/code` response's property type changed from `integer` to `string`, and format from `int32` to no format for status `default`
  - added the optional property `errors/items/description` to the response with the `404` status
  - added the optional property `errors/items/description` to the response with the `422` status
  - added the optional property `errors/items/description` to the response with the `default` status
- **2026-09-16** `a6a61a29ecdd`: 3 breaking
  - the `errors/items/code` response's property type changed from `string` to `integer`, and format from no format to `int32` for status `404`
  - the `errors/items/code` response's property type changed from `string` to `integer`, and format from no format to `int32` for status `422`
  - the `errors/items/code` response's property type changed from `string` to `integer`, and format from no format to `int32` for status `default`
- **2026-08-17** `1571b0380bd7`: 3 breaking
  - the `errors/items/code` response's property type changed from `integer` to `string`, and format from `int32` to no format for status `404`
  - the `errors/items/code` response's property type changed from `integer` to `string`, and format from `int32` to no format for status `422`
  - the `errors/items/code` response's property type changed from `integer` to `string`, and format from `int32` to no format for status `default`
- **2026-08-04** `8f5f4e537994`: 3 breaking
  - the `errors/items/code` response's property type changed from `string` to `integer`, and format from no format to `int32` for status `404`
  - the `errors/items/code` response's property type changed from `string` to `integer`, and format from no format to `int32` for status `422`
  - the `errors/items/code` response's property type changed from `string` to `integer`, and format from no format to `int32` for status `default`
- **2026-02-04** `a3a64a14ed68`: 1 warning, 3 info
  - removed the optional property `result` from the response with the `202` status
  - added the media type `application/json` for the response with the status `404`
  - added the media type `application/json` for the response with the status `422`
  - added the optional property `data` to the response with the `202` status
- **2026-02-03** `6a9394d3d3bb`: 2 breaking, 1 warning, 1 info
  - removed the media type `application/json` for the response with the status `404`
  - removed the media type `application/json` for the response with the status `422`
  - removed the optional property `data` from the response with the `202` status
  - added the optional property `result` to the response with the `202` status
- **2026-01-30** `9584e4796c6d`: 1 warning, 1 info
  - removed the optional property `result` from the response with the `202` status
  - added the optional property `data` to the response with the `202` status
- **2025-12-12** `97b6436446db`: 2 info
  - added the media type `application/json` for the response with the status `404`
  - added the media type `application/json` for the response with the status `422`

---

[Operation](https://skmtc.dev/team-telnyx/apis/telnyx-api-2/docs/faxes/:id/actions/cancel/post.md) - [API](https://skmtc.dev/team-telnyx/apis/telnyx-api-2.md) - [Page](https://skmtc.dev/team-telnyx/apis/telnyx-api-2/changes/faxes/:id/actions/cancel/post)