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User Types in SAP

Updated Apr 04, 2024

What is a User Type?

In SAP, User Type defines the categories of users like system administrators or operators.  This classification system goes beyond just license types.

User types determine the permissions a user can be assigned through roles. These roles grant specific functionalities within the SAP system. With the help of various user types, the system administrator controls permission that can be assigned to each user to perform their task securely.

What are the Different Types of Users in SAP?

There are five types of users in SAP:

1) Dialog user (A)

A regular dialogue user is used for all logon types by precisely one person. This is used to logon using the SAP GUI. During a dialog logon, the system checks for expired/initial passwords. The user can change his or her password. Multiple dialog logons are checked and, if appropriate, logged. These users are used for carrying out standard transactions. This is an interactive type of logon. The initial multiple logins are 6. They are set according to company policy.

2) System User (B)

These are non-interactive users. They are used for background processing and internal communication in the system (such as RFC users for ALE, Workflow, TMS, and CUA). The end users cannot change their passwords. Only the user administrator can change their passwords. Multiple logins is permitted in this type of user. Dialog logon is not possible for this type of user.

3) Communication User (C)

Used for dialog-free communication between systems. It is not possible to use this type of user for a dialog logon. Their passwords are valid for a certain period, so they expire. The users have the option to change their passwords.

4) Service User (S)

Dialog user is available to a larger, anonymous group of users. The system does not check for expired/initial passwords during login. Only the user administrator can change the passwords. Generally, highly restricted authorizations are given to this type of user.

5) Reference User (L)

A reference user is, like the service user, a general non-person-related user. Dialog logon is not possible with this kind of user. A reference user is used only to assign additional authorizations. To attach a reference user to a dialog user, specify it when maintaining the dialog user on the Roles tab page.

Difference Between Various User Types

Roles Dialog User System user Communication User Service User Reference User
Logon with SAPGUI possible/ Interactive Yes No No Yes No
Multiple logins permitted yes NA yes yes yes
Password Expires or initialized NA NA Expires or initialized NA
Password can be changed by End-user User Administrator End-User

How to Create a User Type in SAP?

Please follow the steps below to create a user type in SAP:

  • Execute t-code SU01 in the SAP command field.
  • Next, enter the Username you want to create and then click on the Create icon.
  • Now go to the Address menu and enter various user details first name, last name, email, etc.
  • Now you will be taken to the Logon Data window, here you will have to choose the SAP system user type from the drop-down list.
  • Next, click New Password and create a new password.
  • Once you have created a new password you will be directed to the Roles window, here the system administrators can assign specific roles to each user.
  • Now navigate to the Profiles tab and then assign profiles to each user.
  • At last, click on Save button to confirm the user type has been created.