We have a user that we created in Active Directory and it has been synced using Azure AD Sync. The user is now visible in Office365 and we have assigned a licence for exchange online. A mailbox is created now but i cannot modify any details for it e.g. unable to add/remove secondary email addresses.
When i try i get the error "this is out of the current users scope. The user is being synchronized from your on-premises...". When i log on to our admin centre on our Hybrid server, the user account is not found. If i connect to O365 via PS i can run get-mailbox and see the user.
Does anyone know how i can make modifications to this user?
Please let me know if you need any further information