USER TYPES

[younus_ahmed]

Dialog user :-

Individual system access (personalized)
• Logon with SAPGUI is possible.
• Can Interact with the SAPGUI.
• Expired or initial passwords are checked.
• Users have the option of changing their own passwords.
• Multiple logon is checked.
Usage: For individual human users (also Internet users)

System user :-

System-dependent and system-internal operations
• Logon with SAPGUI is not possible. The user is therefore not interaction-capable with the SAPGUI.
• The passwords are not subject to to the password change requirement, that is, they cannot be initial or expired.
• Only an administrator user can change the password.
• Multiple logon is permitted.
Usage: Internal RFC, background processing, external RFC (for example, ALE, workflow, TMS, CUA)


Communication user :-

Individual system access (personalized)
• Logon with SAPGUI is not possible. The user is therefore not interaction-capable with the SAPGUI.
• Expired or initial passwords are checked but the conversion of the password change requirement that applies in principle to all users depends on the caller (interactive/not interactive). (*)
• Users have the option of changing their own passwords.
Usage: external RFC (individual human users)


Service user :-


Shared system access (anonymous)
• Logon with SAPGUI is possible. The user is therefore interaction-capable with the SAPGUI.
• The passwords are not subject to the password change requirement, that is, they cannot be initial or expired.
• Only a user administrator can change the password.
• Multiple logon is permitted.
Usage: Anonymous system access (for example, public Web services)


Reference user :-

Authorization enhancement
• No logon possible.
• Reference users are used for authorization assignment to other users.
Usage: Internet users with identical authorizations



Regards,
Younus (VIT)

[blopezq]

Type
Purpose

Dialog
Individual, interactive system access.

System
Background processing and communication within a system (such as RFC users for ALE, Workflow, TMS, and CUA).

Communication
Dialog-free communication for external RFC calls.

Service
Dialog user available to a larger, anonymous group of users.

Reference
General, non-person related users that allows the assignment of additional identical authorizations, such as for Internet users created with transaction SU01. No logon is possible.