Excursus: settings in CRM.interface
The criteria which contact persons are synchronized have to be defined in CRM.interface.

Filter by Rep: If this option is enabled, all persons where the current user is assigned to the "rep field" (AD field) in Aurea CRM are synchronized.
Filter by Sales group: If this option is enabled, all persons where the current user is part of the associated Sales Group are synchronized.
Sync Companies: If this option is enabled, then not only contact person data (KP) but also company information (FI) is synchronized from Aurea CRM to Domino Server.
Filter by Favorites: If this option is enabled, persons marked as favorites are synchronized from Aurea CRM to Domino Server.
Since the number of persons to synchronize might be quite high, enabling all these options could cause high database activities and slow down performance reasonably.