Why are the Contacts not displayed in the Contacts List?

If no contacts display (or only a partial list of contacts display) in the client UI, the possible causes are:

User Contact is not defined
Sticky Search String (search string is not cleared)

If Maximal Contacts is selected for the user, then all users in the department are defined as contacts. If Maximal Contacts is not selected, then the contacts must be defined for that user. You must add existing department users to the user’s contact list.