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

# unsupported_media_type

> HTTP 415 — the request body's Content-Type is not one the endpoint accepts.

The `Content-Type` header on the request named a media type the endpoint does
not accept.

**Not retryable.** Check the endpoint's reference for the media types it
accepts and send the body in one of them, with a matching `Content-Type`
header.

All error codes and the retry model: [Errors](/problems/overview).