Vienna Hotel app channel authorization failed.

What is the reason for the failure of Vienna hotel app channel authorization? The reasons for the failure of Vienna Hotel app channel authorization are as follows:

1. Network connection problem: unstable or interrupted network connection will lead to authorization failure.

2. Software version mismatch: The version of Vienna Hotel used does not match the version of hotel system, which will lead to authorization failure.

3. Permission closure: If the permission of Vienna Hotel is closed or restrictions are set, the authorization will also be invalid.

4. System maintenance: Vienna hotels need regular maintenance. During the maintenance period, the authorization service will be suspended, resulting in the failure of authorization.