---
title: 2003: Attachment not found | API Docs
description: The requested attachment does not exist or is no longer available.
---

The requested attachment does not exist or is no longer available. This is an HTTP 404 error indicating the attachment ID you provided could not be resolved.

## Troubleshooting

- Verify the attachment ID is correct
- Presigned upload and download URLs expire, so ensure uploads complete before the URL expires

## Related

- [Attachments](/guides/messaging/attachments/index.md)
- [API reference: Attachments](/api/resources/attachments/index.md)
- [Debugging](/guides/platform/debugging/index.md)