---
title: 2024: this Idempotency-Key was used with a different request body | API Docs
description: this Idempotency-Key was used with a different request body
---

this Idempotency-Key was used with a different request body. This is an HTTP 409: the object’s current state conflicts with the request.

## Troubleshooting

- Verify the id came from a previous response on this brand’s credential.
- An id belonging to another brand answers 404 exactly like one that does not exist, so a valid-looking id may simply not be yours.
- Re-read the object and retry once its state allows the operation.

## Related

- [Sending a message](/channel/amb/api/resources/chats/subresources/messages/methods/send/index.md)