---
title: "E20001 — AssetTypeUnsupported"
description: "This file type is not supported by the media library."
canonical: "https://bird.com/docs/api/errors/E20001"
---

# E20001 — AssetTypeUnsupported

This file type is not supported by the media library.

- **HTTP status**: `422`
- **Type**: `validation_error`
- **Name**: `AssetTypeUnsupported`

## What to do

Upload one of the supported formats: PNG, JPEG, GIF, or WebP for images; MP4, WebM, or QuickTime for video; MP3, M4A, Ogg, or WAV for audio; PDF for documents. Among images, animated content is supported only as GIF.

## Related

- [E20xxx — Assets & media library](/docs/api/errors/E20xxx): every code in this range
- [Errors](/docs/api/errors): the full wire contract, status mapping, and error catalog
- [Error handling](/docs/guides/errors): branching on `type` and `code`, validation details, and `vendor_code`

## Related resources

- [Should I use a Bird SDK or call the API directly?](/explained/platform/should-i-use-an-sdk-or-call-the-api-directly) (answer)
- [Build your first integration](/learn/paths/integration) (course)
- [Send your first email](/docs/get-started/send-your-first-email) (docs)

[Get an implementation brief](/learn/workspace?topic=api-basics)