---
title: 2001: Chat not found | API Docs
description: The requested chat does not exist or you lack permission.
---

The requested chat does not exist or you lack permission. This is an HTTP 404 error indicating the chat ID you provided could not be resolved.

## Troubleshooting

- Verify the chat ID is a correct UUID returned from `POST /v3/chats` or `GET /v3/chats`

## Related

- [API reference: Chats](/api/resources/chats/index.md)
- [Debugging](/guides/platform/debugging/index.md)