Unable to login: no user with user id '' found (SuperOffice Onsite)

Owned by Remco Visser
Last updated: Feb 02, 2023 by Remco Visser
1 min read

Overview

You have received an e-mail to setup Calendar Synchronization.

After logging in into Microsoft 365 you are getting the below error message

Solution

Most likely your UPN (userPrincipalName) does not match your primary e-mail address. When using Synchronizer for SuperOffice with SuperOffice Onsite this is necessary to identify syncusers.
Please contact your IT administrator to make the UPN match your primary e-mail address.