Maintaining SNC Information of Users on AS ABAP
With SNC, the names of the communication partners as known to the external security product are exchanged in the corresponding SNC layers in the SAP system components. For example, the authentication process for a user logging on to the SAP system over an SNC-protected SAP GUI occurs between the SAP GUI's SNC layer and the SNC layer on the application server. Because this is a secure authentication procedure, the SAP system can use the SNC name, which is a specialized form of the external user name, to authenticate the user in the SAP system and accept (or deny) the logon request. Therefore, all users, to include both dialog and non-dialog users, need to have identifications in the SAP system that correspond to the user IDs used by the external security product. The next topics explain the user maintenance in the SAP system in more detail.