---
title: 5002: Media id inbound only. | API Docs
description: media_id cannot be supplied on a send.
---

**HTTP status:** `422`.

media\_id identifies bytes that arrived from a customer and is never accepted as a send input. Nothing was sent.

## Troubleshooting

- Upload outbound bytes with POST /v1/media and reference the returned upload\_ref in the part.

## Related

- [Uploading media](/channel/whatsapp/api/resources/media/methods/upload/index.md)
- [Sending messages guide](/channel/whatsapp/guides/messaging/sending-messages/index.md)