All SwyxIt! users, who want to use the SwyxPLUS VisualContacts upgrade for a DATEV pro integration, need a SwyxPLUS für DATEV pro license. SwyxIt! allocates this license during logon to the SwyxServer, if SwyxPLUS für DATEV pro is installed. Users with a SwyxPLUS für DATEV pro license do not need an additional SwyxPLUS VisualContacts license.