When I invite a guest user to Azure AD in order to provide him access to an Enterprise Application which has set "User assignment required" to YES, the guest user (after registration) gets an error once trying to sign to the application in charge.
I have to translate this error from German like:
Administratorpermission required
<Enterprise Application Name> requires, in order to access resources in your organization, a permission which only an administrator can grant. Please ask an administrator to assign the permissoins for this app, in order to be able using it.
This only happens for guest users (which have not previously signed in to my app successfully) if "User assignment required" is set to yes. Once I set it to no, user can login, it will stay fine for this user even if I set it back to yes afterwards,
but not for new guest users. The user(s) in charge was(where) previously assigned to access this enterprise application. The enterprise application is hosted on-premise. I don't know what other permission I need to grant except assigning the user to the respective
application.
What am I missing?
kind regards,
Dieter