---
title: "Cancel migration"
method: POST
path: "/migrations/{runId}/cancel"
tags: ["Migrations"]
---

# Cancel migration

`POST /migrations/{runId}/cancel`

Cancels queued/pre-execution runs immediately. Running imports move to cancel_requested while workers stop linked subscriber import chunks, then finish as canceled.

## Path parameters

- `runId` string, required

## Response `200`

Migration canceled

- object
  - `success` boolean
  - `data` object

## Other responses

- `401` — Unauthorized
- `403` — Forbidden
- `404` — Migration run not found

## Changes

- **2026-08-19** `ba3a29c6eb33` — 3 info
  - added the optional property `retryable` to the response with the `401` status
  - added the optional property `retryable` to the response with the `403` status
  - added the optional property `retryable` to the response with the `404` status
- **2026-08-16** `6fd2903b91ce` — 3 info
  - added the optional property `code` to the response with the `401` status
  - added the optional property `code` to the response with the `403` status
  - added the optional property `code` to the response with the `404` status
- **2026-08-02** `36f92fc0caa2` — 3 breaking
  - the response property `success` became optional for the status `401`
  - the response property `success` became optional for the status `403`
  - the response property `success` became optional for the status `404`
- **2026-06-18** `7510100bfe08` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/sequenzy/apis/sequenzy-api/changes/migrations/:runId/cancel/post.md)

---

[API](https://skmtc.dev/sequenzy/apis/sequenzy-api.md) · [All operations](https://skmtc.dev/sequenzy/apis/sequenzy-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/sequenzy/sequenzy-api/revisions/73f826277d9a/schema)