Updating OAuth Authorizations for the 4.1.3.x release and later
The G Suite IDM connector (Google Driver) release version 4.2 requires updates to the authorized OAuth Scopes and enabled APIs for your service account to work properly.
Authorized Scope List
This is the complete authorized scope list as of this release:-
https://www.googleapis.com/auth/admin.directory.group.member
https://www.googleapis.com/auth/admin.directory.orgunit
https://www.googleapis.com/auth/admin.directory.user
https://www.googleapis.com/auth/admin.directory.user.alias
https://www.googleapis.com/auth/admin.directory.user.security
https://www.googleapis.com/auth/admin.directory.userschema
https://www.googleapis.com/auth/userinfo.profile
https://www.googleapis.com/auth/userinfo.email
http://www.google.com/m8/feeds
https://www.googleapis.com/auth/contacts.readonly
https://www.googleapis.com/auth/apps.groups.settings
https://www.googleapis.com/auth/admin.directory.rolemanagement
https://www.googleapis.com/auth/gmail.settings.basic
https://www.googleapis.com/auth/gmail.settings.sharing
https://www.googleapis.com/auth/gmail.labels