---
title: "POST /api/v1/DocsFaxSender/CancelFax"
method: POST
path: "/api/v1/DocsFaxSender/CancelFax"
tags: ["DocsFaxSender"]
---

# POST /api/v1/DocsFaxSender/CancelFax

`POST /api/v1/DocsFaxSender/CancelFax`

## Request body

- CcpDocsProviderFaxDataModelDocsFaxCancelRequest
  - `UserName` string, required
  - `Password` string, required
  - `SourceSystem` string, required
  - `ListOfRequestIdentifiersToCancel` string[]

## Response `200`

Request processed with no issues.

- string

## Other responses

- `401` — User validation failed.

---

[API](https://skmtc.dev/redcard/apis/ccp-docs-wcf-public.md) · [All operations](https://skmtc.dev/redcard/apis/ccp-docs-wcf-public/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/redcard/ccp-docs-wcf-public/revisions/b572c437ad6b/schema)