> ## Documentation Index
> Fetch the complete documentation index at: https://docs.staging.relayapp.im/llms.txt
> Use this file to discover all available pages before exploring further.

# Error 2006: Invalid content

> Resolve Relay error 2006.

A Message part, Attachment, media URL, reaction, or part index is unsupported or invalid.

## Response

```json theme={null}
{
  "error": {
    "status": 422,
    "code": 2006,
    "message": "A Message part, Attachment, media URL, reaction, or part index is unsupported or invalid.",
    "doc_url": "https://docs.relayapp.im/error/codes/2xxx/2006"
  },
  "success": false,
  "trace_id": "b923d71e50be43ba9e0fe1e34a7676c2"
}
```

## Fix

1. Read error.message for the rejected content boundary.
2. Correct the content type, size, URL, or part index before retrying.

The HTTP status can be `413`, `415`, or `422` for this code. Read
`error.status` from the response.

## Retry

Do not retry the same request unchanged.

## Related

* [Error overview](/error)
* [Debugging](/guides/platform/debugging)