---
title: "Changes to Cancel Box Sign request"
method: POST
path: "/sign_requests/{sign_request_id}/cancel"
---

# Changes to Cancel Box Sign request

`POST /sign_requests/{sign_request_id}/cancel`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 2 revisions.

- **2026-11-03** `c4d5303fa5c3`: 1 breaking, 2 warning

## Changes

- **2026-11-03** `c4d5303fa5c3`: 1 breaking, 2 warning
  - added `#/components/schemas/SignRequestSignerInputZIPJPValidation` to the `allOf[subschema #2]/signers/items/allOf[subschema #2]/inputs/items/allOf[subschema #2]/validation/anyOf[subschema #1: Sign Request Signer Input Validation]/` response property `oneOf` list for the response status `200`
  - added the new `unprocessable_entity` enum value to the `code` response property for the response status `404`
  - added the new `unprocessable_entity` enum value to the `code` response property for the response status `default`

---

[Operation](https://skmtc.dev/box/apis/platform-api/docs/sign_requests/:sign_request_id/cancel/post.md) - [API](https://skmtc.dev/box/apis/platform-api.md) - [Page](https://skmtc.dev/box/apis/platform-api/changes/sign_requests/:sign_request_id/cancel/post)