I tried multiple times (even with different google accounts to add the Gmail integration, but each time I get error message :: # Access blocked: Authorization Error The OAuth client was deleted.
If you are a developer of this app, see error details.
Error 401: deleted_client
Anyone has any idea of what to do ?
I got it to work and this was the issue, and it may be helpful for others. As I had tried several times, the Google Authentication, even though it did not work, was in HA and had to be removed. Once removed, and going through the process again, it now works.