Help with API Connector and Google OAuth (stuck with errors!)

Hi all,
I’m trying to use the API Connector to connect to a Google API. It’s a less common API (Campaign Manager). I’m getting an error that the API isn’t returning an ID.


Here is the settings I have:

And here is the error:
Screen Shot 2020-11-04 at 14.29.52

Doesn’t anybody have any suggestions?