TYPE OF USER

Type of user in SAP

Dialog:  This is the most commonly used type. This user type is primarily for individuals to gain interactive system access.  A user of this type can perform dialog processing in interactive mode, background processing, and batch input processing and CPI-C services provided there are no explicit restrictions via assignment of specific authorizations.

SAP licensing can prohibit multiple concurrent use of the same user id in production SAP systems.

     GUI login is possible.

     Initial password and expiration of password are checked. 

     Multi GUI logins are checked.

     Usage: - These are used for GUI logins.

Communication:  This user type is used for dialog-free communication between systems such as RFC (Remote Function call) communication. This user is not allowed to logon to the R/3 system or start dialog processing.

         GUI login is not possible.

         Users are allowed to change password through some software in middle tier.

         Usage: - These are used for login to system through external systems like web application.

System: This is the user type which can be used for dialog-free communication within a system (such as for RFC users for ALE, TMS, workflow and CUA) and for background processing.

A specific use of the system user type is validity period of a password won’t apply for this type. So, this can be used to run background jobs and in between RFCs so that jobs or RFC communications won’t fail due to expiry of the password.

Please note that logon in dialog is not possible used System user type.

         GUI login is not possible.

         Initial password and expiration of password are not checked.

         Usage: - These are used for internal use in system like background jobs.

Service: This user type is a dialog user which is available to a large, anonymous group of users. For example, to access via ITS (Internet Transaction Server)

There won’t be any check on initial password or expired passwords for this user type. Also, multiple logons are explicitly permitted for this user type.

         GUI login is possible.

         Initial password and expiration of password are not checked.
         Multiple logins are allowed.
         Users are not allowed to change the password. Only admin can change the password

         Usage: - These are used for anonymous users. This type of users should be given minimum authorization.

Reference: This user type is in general, non-person related user.  This user type cannot be used for logon. Instead this user type will serve as a reference for assigning additional identical authorizations to other users.

         GUI login is not possible.

         Initial password and expiration of password are not checked.

         Usage: - These are special kind of users which are used to give authorization to other users.