Precondition error

[MutedJam]

Hi @Clapp_Prod, you might want to check out this post on the topic of impersonating users:

Cannot impersonate user for gmail with service account

@MutedJam I have verified that I can use the service account credentials to impersonate a user for Google Sheets as shown in this tutorial. Note though that the credentials user interface still gives an error message (but they work!) which is described in this github issue (2397). However my original problem persists, since I want to use Gmail API, and here I still get an error even if I just “ignore” the error in the credentials UI. [image] – Am I lacking any scopes for gmail? What scope…