---
title: MSCriticalMessagingError.invalidAuthenticationRequest
framework: messages
role: symbol
role_heading: Case
path: messages/mscriticalmessagingerror/invalidauthenticationrequest
---

# MSCriticalMessagingError.invalidAuthenticationRequest

The authentication request isn’t valid.

## Declaration

```swift
case invalidAuthenticationRequest
```

## Discussion

Discussion The framework isn’t able to validate the authentication request.

## See Also

### Error codes

- [MSCriticalMessagingError.unknown](messages/mscriticalmessagingerror/unknown.md)
- [MSCriticalMessagingError.notSupported](messages/mscriticalmessagingerror/notsupported.md)
- [MSCriticalMessagingError.notAuthorized](messages/mscriticalmessagingerror/notauthorized.md)
- [MSCriticalMessagingError.sendFailed](messages/mscriticalmessagingerror/sendfailed.md)