---
title: "Replace Cancel"
method: POST
path: "/catalogs/replace/cancel"
tags: ["Catalogs"]
---

# Replace Cancel

`POST /catalogs/replace/cancel`

**Beta.** Catalog replace is a Beta feature and can change. Send the `Batch-Beta: catalog-replace` header on each call.
<br/><br/>Cancels an open replace session. Batch discards the pending revision and all of its items. The live catalog does not change. A session that is already complete or cancelled returns `409 CATALOG_REPLACE_UNKNOWN`.

## Headers

- `X-Batch-Project` string, required
- `Batch-Beta` string, required — Value of the `Batch-Beta` header. It is a comma-separated list of Beta contract flags. Thus one request can opt into more than one Beta contract at the same time (`first-flag, second-flag`). Flags are lowercase and case-sensitive, and the order does not matter. Batch rejects an unknown flag with a `400` on any endpoint. When a contract becomes generally available, Batch continues to accept its flag but the flag has no more effect. Thus you never need to remove it.

## Request body

- object
  - `replace_token` string, required — Token that `/catalogs/replace/start` returns.

## Response `200`

Empty success response

- EmptyResponse

## Other responses

- `400` — The request is malformed
- `401` — The Rest API Key is not valid for this project
- `409` — The replace session is unknown or no longer open.
- `429` — Too Many Requests
- `500` — Unexpected error
- `503` — Batch's services are under maintenance. Please try again later

---

[API](https://skmtc.net/batch/apis/batch-rest-api.md) · [All operations](https://skmtc.net/batch/apis/batch-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/batch/batch-rest-api/revisions/ec696334ff35/schema)