Cannot remove email alias for account in Office 365
I am trying to add/remove aliases to an account in Microsoft 365 and get this error:
The operation on mailbox "Blane Smith" failed because it's out of the current user's write scope. The action 'Set-Mailbox', 'EmailAddresses', can't be performed on the object 'Blane Smith' because the object is being synchronized from your on-premises organization. This action should be performed on the object in your on-premises organization.