For each user who logs on to the SAP system using SNC, you must establish a relationship between the SAP system user ID and the external user name (SNC name).
With this restriction, you can be sure that each user in the SAP system also has a single identity with the external security product. This is necessary for monitoring user actions, for example, for auditing purposes.
We do not recommend using SNC names that are longer than 80 printable characters. For more information, see SAP Note 184277.
Select Allow Password Logon for SAPGUI (user-specific) if you want to allow logon with user ID and password for the user.
This option is only effective if the profile parameter snc/accept_insecure_gui is set to U.
The SAP system automatically updates the user ACL (table USRACL) and generates the user's SNC name in canonical form. If no errors occurred, then the system activates the Canonical name determined indicator and displays the length of the SNC name. An error may occur, for example, if the SNC name contains syntax errors.
As an alternative, you can use transaction SM30 to directly enter the SNC names in the USRACL table.