Saw a previous thread about this 7 years ago marked as "Fixed", we are using the most up to date version of the App in Splunk Cloud, I updated the setup object and removed the href line and changed dashboard=true, this is now allowing me to view the setup dashboard and upload our service account key. The only issue that remains, is not being able to see the Data Input -> Google Spreadsheet.
I did a test install on our HF and could see the input there, but not in our cloud instance. We do have other Google Apps/Add-Ons installed in our cloud instance, so I wonder if the original issue re-manifested itself?
Original Issue: https://community.splunk.com/t5/All-Apps-and-Add-ons/No-new-input-type-as-quot-Google-Spreadsheet-qu...
Are you seeing an error listed in the messages? If I recall, the original issue would cause an error to show up in the messages list.
No errors or messages that I can find @LukeMurphey