I think this is in the documentation on the Google Make apps. And I have no idea why this is the case with Make and why Zapier works ok with free Google accounts. Maybe zapier has a special way to authenticate that Google provided them?
I think this is in the documentation on the Google Make apps. And I have no idea why this is the case with Make and why Zapier works ok with free Google accounts. Maybe zapier has a special way to authenticate that Google provided them?