Why do I see the federated user is not configured to access the platform message when trying to login
Users may report that when attempting to login using the ‘Login To O365′ option a message saying “The federated user is not configured to access the platform. Please contact your Administrator for assistance.’
Why does the user see this message?
When a Login to O365 attempt is made, Microsoft return the Federated user name to the application. The application then looks up the user records and match the account.
The user will see this message as their account in the Users and Teams section either does not have an entry in the Federated User name field or the entry within the Federated User name field is incorrect and does not match with what was returned by Microsoft.
How to resolve this message
Edit the users record in the Users and Teams section of the Administration tool, navigate to the General tab in the User profile section.
If the Federated User name field is not completed for the user, add it.
If the Federated User name field is completed, check the entry and correct any mistakes.
Once this is complete, ask the user to try logging in again.