Google Apps Script PERMISSION_DENIED with sheets addon

Question

I tried to implement a simple \"Multi selector sidebar\" extension based on THIS SHEET which I found in this Google support thread

When I copy the sheet it works fin

Answer 1

I have the same issue with the "permission denied" error message, and I found this

https://github.com/burnnat/page-sizer/issues/3

I think the issue is that I'm logged into multiple google accounts when I am working on this. I logged out of all google accounts, then only logged into the one account that I was trying to use formMule and it worked.

so I tried the exactly same code with incognito mode in the chrome, with only one account logged in, and it works !

I hope this can help you with your issue.