The following are the different user types −
Dialog user − This user is used for interactive system access from GUI.
System user − This user is used for background processing, communication within a system.
Communication user − This user is used for external RFC calls.
Service user − This user is created for a larger and anonymous group of users.
Reference user − It is not possible to log on to the system with this user type. User type for general, non-person related users that allows the assignment of additional authorizations.
