---
title: "Changes to Cancel order"
method: POST
path: "/orders/v1/cancel_order"
---

# Changes to Cancel order

`POST /orders/v1/cancel_order`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 2 revisions.

- **2026-11-03** `47cf70ae701c`: 4 breaking

## Changes

- **2026-11-03** `47cf70ae701c`: 4 breaking
  - the request property `order_id` became required
  - removed the enum value `firms/F-{platform_code}/users/{account_label}` of the request property `user`
  - removed the enum value `firms/F-{platform_code}/users/{participant_code}` of the request property `user`
  - removed the enum value `firms/{zerohash}/users/{platform_code}` of the request property `user`

---

[Operation](https://skmtc.dev/zerohash/apis/zerohash-api/docs/orders/v1/cancel_order/post.md) - [API](https://skmtc.dev/zerohash/apis/zerohash-api.md) - [Page](https://skmtc.dev/zerohash/apis/zerohash-api/changes/orders/v1/cancel_order/post)