In the Thinfinity® Remote Desktop Server manager "OAuth/2" tab you will find the following options:
Enable Google OAuth/2
Check this option to enable Oauth/2 authentication.
Force approval prompt (Google connection only)
If this option is marked, the user will be always prompted to approve the account integrations, when logging into the application. This option applies only to Google SSO Integration.
Client ID
This client ID identifies Thinfinity VirtualUI in the OAuth Server.
If you are using Google OAuth, it's the Google Client ID generated while configuring the google account integration.
Client Secret
This client secret identifies Thinfinity Remote Desktop Server in the OAuth Server.
If you are using Google OAuth, it's the Google Client Secret generated while configuring google the account integration.
Always remember to press "Apply" in order to save the changes.