Access Blocked: This App's Request is Invalid

[chronof-x]

Been using this tool to migrate user emails without issues for the last couple years. Just today I started getting this error.

Access blocked: This app’s request is invalid
You can’t sign in because this app sent an invalid request. You can try again later, or contact the developer about this issue. Learn more about this error
If you are a developer of this app, see error details.
Error 400: redirect_uri_mismatch

I tried deleting the project, clientsecrets & gyb jsons and all config files, as well as the API clients, and recreating everything, but still getting the same errors. Any idea what might be causing this?

[jay0lee]

please start a discussion in the group for this.

https://groups.google.com/g/got-your-back