What types of SAP users exist, what are their responsibilities, and how are they managed? This article covers everything you need to know about SAP users and what to watch out for in user management.
At its core, an SAP user is someone who can log on to the SAP system using a valid user master record. That user master record is the foundation for access to applications, transactions, and data. It contains key information such as logon credentials, roles, authorizations, and license assignments.
→ An SAP user is therefore the smallest, yet one of the most critical, units in your organization’s authorization and license management. Without clean management, you risk not only security gaps, but also unnecessary license costs and compliance violations.
The user master record is the core of every SAP user. It is organized into several tabs, each capturing specific information:
Only when this master data is complete and correctly maintained can SAP users work efficiently and securely across your system landscape.
Download Our Whitepaper about Reducing SAP License CostsNot every SAP user handles the same tasks. SAP distinguishes between 5 common user types, each with different characteristics, activities, and authorizations.
Here’s a quick overview:
| User Type | Code | Key Properties |
|---|---|---|
| Dialog User | A | Interactive users who log on directly to the system. Password checked at every logon. Users can change their own password. Multiple logons are monitored and may be logged. |
| System User | B | For background processing and RFC communication. Dialog logon is not possible. Password changes are made by administrators only. Multiple logons are permitted. |
| Communication User | C | For communication between systems (e.g., ALE, Workflow, TMS). Dialog logon is not possible. Password checks will depend on the logon method. |
| Service User | S | For anonymous or mass system access (e.g., internet services). Password changes are made by administrators only. Multiple logons are permitted. Recommendation: assign only strictly limited authorizations. |
| Reference User | L | Not person-specific. Used to grant identical authorizations to other users. System logon is not possible. |
The tasks of SAP users depend heavily on their user type. Two broad categories apply:
Beyond the 5 standard user types, there is also the role of the SAP Key User. This role is special: key users act as a bridge between IT and business departments. They understand both the business processes and the technical implementation behind them.
In addition to serving as that bridge, key users’ main responsibilities include:
SAP users give employees access to business processes such as accounting, HR, or procurement within the SAP system.
To ensure security, transparency, and compliance, every user role needs clearly defined permissions and responsibilities. Authorizations are used to control and audit access to data and functions in a targeted way.
Contact us today – free of charge and without obligation – and benefit from a clean, secure user landscape in your SAP system.
For administrators, having full transparency over all users at all times is essential. That’s what user administration in the SAP system is for.
Through transaction SU01, administrators can not only display SAP users but also create users, modify them, or lock them. Master data such as roles, profiles, and license information can be viewed directly there. Additional tools are available for reporting and mass changes (e.g., transactions SE16H or MM17).
→ Regular user reviews help identify unused or incorrectly authorized accounts and prevent security risks. See our dedicated article on SAP user management for a full walkthrough of the key transactions.
Managing SAP users isn’t just about IT security – it also affects license management.
→ Every user is linked to a license type, and the cost of that license depends on the authorizations assigned. By analyzing actual transaction usage, organizations can avoid overpaying for license types that don’t match real business usage.
→ Security: features like Secure Network Communications (SNC) protect communication between systems and strengthen authentication security.
The Xiting Authorizations Management Suite (XAMS) enables you to run a precise analysis of all licenses, conduct detailed authorization simulations, and adjust any discrepancies for you in a risk-free manner. This allows you to avoid unnecessary license costs while still meeting security and compliance requirements.
Proper user management in SAP is no easy task, but it’s essential. If you don’t manage your SAP users correctly, several security risks can arise.
Unstructured SAP user management can have serious consequences:
To manage SAP users securely and efficiently, make sure to implement the following measures:
And that's exactly where Xiting comes in!
With our solutions, such as the Xiting Authorizations Management Suite (XAMS) and Xiting Central Workflows (XCW), we help you make your SAP systems more secure, more efficient, and more transparent.
Contact us today – at no cost and with no obligation.
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