# unsupported_media_type

> The request body has an unsupported content type.

Source: https://tickwire.io/docs/errors/unsupported_media_type/

HTTP 415. Nothing reached the broker.

**Likely cause:** Not application/json.

**What to do:** Send JSON with Content-Type: application/json.

**Retry:** No. The same request gets the same answer; change something first.

Listed under [Requests and validation](https://tickwire.io/docs/errors/#requests-and-validation) in [Errors](https://tickwire.io/docs/errors/). Send the error's `requestId` to support and we can find the request.