I'm having an issue with inviting users to a Group inside my organization. The users I'm attempting to invite are outside the organization. The structure of their usernames is: 'email@example.com_gisdepartment'.
When I search for a user to add to my group, the search results only return a user with the username 'first'. It seems as though the user invite search stops looking past that first 'period' in the username.
Am I missing something? If their accounts are not searchable, how can I point them toward changing that setting and allowing themselves to be searchable?