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# CXErrorCodeNotificationServiceExtensionError.Code.invalidClientProcess

An error indicating that an invalid client process reported the incoming call.

```
case invalidClientProcess
```

## Discussion

Only call the [`reportNewIncomingVoIPPushPayload(_:completion:)`](/documentation/CallKit/CXProvider/reportNewIncomingVoIPPushPayload(_:completion:)) method from a <doc://com.apple.documentation/documentation/UserNotifications/UNNotificationServiceExtension> object that is responding to an incoming notification request.

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