# POST /api/files.upload stops working

Calls to POST /api/files.upload on Slack stopped working on November 12, 2025.

- API: Slack (slack.com)
- Kind: Endpoint removal
- Announced: April 9, 2024
- Takes effect: November 12, 2025
- Calls after that day: fail
- Calls it hits: `POST /api/files.upload`
- Source: [Announcement](https://docs.slack.dev/reference/methods/files.upload)
- Page: https://www.okapi.bot/providers/slack/breaking-changes/post-api-files-upload-stops-working/

## What to use instead

Upload with files.getUploadURLExternal then files.completeUploadExternal.