Set Up an Existing Google External Login Authentication
Already set up your Google External Login Authentication with Google+ and getting an error message? Relink your account using a new Google account.
In the navigation menu, click Administration > Identity Providers.
Open the Google Identity Provider Record.
Remove the existing Client ID and Client Secret.
Add a new Client ID and Client Secret created using Google's Cloud Platform Console.
Click Save.
Note:MinistryPlatform only registers identity provider changes with a full appreciation pool reset. This happens overnight, but if you have access to your server, you can reset the app pool.