# 57011: Unsupported Partner name

Log Type: APPLICATION

Log Level: ERROR

## Description

This error occurs when the `PartnerName` value in your Messaging request is not supported.

### Possible causes

* The `PartnerName` value you sent is not supported.

### Possible solutions

* Confirm that you're passing a valid `PartnerName` value in the request.

#### Additional resources

* [Messaging documentation](/docs/messaging)
* [Troubleshooting](/docs/comms/troubleshooting)