Hello,
There are no answers for this issue that i could find and hope things have changed now.
The connection account in the app that's used in Office365Groups.AddMemberToGroup has exchange, teams, user and sharepoint admin roles and an owner of the group as well. I am global admin and when i try to add a user using this command, it works. but every time when a regular user role tries to run this command, they get "Office365Groups.AddMemberToGroup failed: { "error": { "code": "Authorization_RequestDenied", "message": "Insufficient privileges to complete the operation.", ....."
Any ideas why and how to solve this?