While Enabling Google Actions in your Glean Admin Console, if you encounter the Error: Error creating action pack / Service Account doesn't have required scopes.
You need to review the Domain-wide-delegation setup permissions page and make sure the scopes are correctly defined.
Required Scopes:
https://www.googleapis.com/auth/drive.file
https://www.googleapis.com/auth/gmail.compose
You need to ensure you have provided Domain-wide-delegation (DWD) permissions to the service account with the client ID that pops up on the Setup instructions page while enabling Google Actions.