Has anyone setup the OAuth and 2 factor setup in v2021 and emailing?

Anyone have any examples of what should be populated on the fields?
ie User ID, Client ID, client secret and redirect URL.

The help document gives some hints, but we are still struggling with the setups.
It may be the "client' environment still that is causing issues (firewall), but I have to prove to the local IT person that it is not Sage again.

Thanks for any tips out there.