Update! Thanks to your feedback, we now surface this limitation (Google Sheets only returns the first 26 columns by default) in the UI 
If you don't see it in your app yet, check back in a couple days after our next Cloud deploy.
Update! Thanks to your feedback, we now surface this limitation (Google Sheets only returns the first 26 columns by default) in the UI If you don't see it in your app yet, check back in a couple days after our next Cloud deploy.