Hello,
I have created a web application from GAS under a spreadsheet and am deploying it. with access to me only
As a result, from the AppSheet webhook I have an unauthorized 401, which I don’t have when I authorize everyone else 
I imagine that it is necessary to pass in the header a token but I don’t know how to create it
From GCP, I created an OAuth 2.0 Client and I got the JSON but how to implement it in AppSheet?
I am interested in your ideas
Thanks and regards,
Alexandre