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The SAP Single Sign-On product offers support for Kerberos/SPNEGO. You can use Kerberos authentication tokens to easily implement a single sign-on solution for your SAP systems. This requires little implementation effort, but provides a considerable simplification to your employees’ authentication processes. Using Kerberos technology via SNC or SPNEGO, a trust relationship is established between the user’s front end (SAP GUI for Windows or a web browser, for example) and the back-end Application Server ABAP or Java.

Employees log in once when they start their computers by signing on to their Windows domain. Any subsequent authentication processes are left to a Kerberos token mechanism provided by SAP Single Sign-On and based on Microsoft Active Directory. No additional server is required in this scenario. Working on the front-end software, the user experiences streamlined, easy accessibility.


Implementing Single Sign-On with Kerberos

The following videos provide a step-by-step configuration tutorial for setting up Kerberos-based single sign-on for AS ABAP and AS Java.


Part 1: Kerberos-Based SSO to Application Server ABAP (6:20 min)

The video guides you step-by-step through the tasks required for setting up Secure Network Communication (SNC) and configuring SSO based on Kerberos/SPNEGO on the ABAP backend. Learn how easy this is using the SNC Wizard and Kerberos transaction.

Part 2: Kerberos-Based SSO to Application Server ABAP – Mass User Mapping (1:56 min)

One configuration task required for Kerberos-based SSO is user mapping. You need to map the SNC user name (based on the Windows domain user name) to the SAP ABAP user name. But how to configure user mapping for thousands of users? The video guides you through the options available for mass user mapping in Application Server ABAP.

Part 3: Kerberos-Based SSO to Application Server Java (3:52 min)

The video guides you step-by-step through the tasks required for configuring SSO based on Kerberos/SPNEGO in the Application Server Java.

Recommendations and Troubleshooting

Single Sign-On with Kerberos: Recommendations & Troubleshooting

Troubleshooting SPNego for ABAP (SAP Note 1732610)


Kerberos Authentication Flow for Browser-Based Applications Provided by the AS ABAP

Kerberos/SPNEGO for SAP AS ABAP in a Multi Domain Environment

SAP Single Sign-On: Protect Your SAP Landscape with X.509 Certificates

Additional Resources

Single Sign-On to SAP HANA DB using Kerberos (SAP Note 1837331)

Single Sign-On to SAP BusinessObjects BI Platform 4.0

Mobile Single Sign On from iOS 7 to SAP NetWeaver

Take the SAP Fiori Experience to a New Level with SAP Single Sign-On

More Information

For more information about SAP Single Sign-On, visit our community here:


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  1. Ahmed Ragab

    HI Martina ,

    we planned to use sap sso authenticate with kerbos , but i faced an issue when i add a connection in sap gui using  connection type ” group/server ” , in secure network setting  i can’t enable ” activate secure network communication ” as shown below . i ask if there is any  missing thing to enable SNC when using server group connection .

    1. Martina Kirschenmann Post author

      Hi Ahmed,

      the connection using connection type “group/server” retrieves SNC parameters from the ABAP server. If SNC is not configured on the server, you cannot activate/deactivate SNC in SAP GUI. Please use the transaction “sncwizard” to configure your ABAP server for SNC first.



  2. Steffen Wetzler

    Hi Martina,


    I followed your configuration in video 1. I did exactly the same. When I try to login with SNC the following error comes up:

    SAP Secure Login Client is running. SPNEGO indicates green light. I used the same SPN and parameters like you.




      1. Muhammad Bilal Barlas

        Hi Matrina,


        I am trying to configure SSO for our system as per SSO Guide.

        While trying to set following ABAP profile parameters, its saying the parmeter is not known.


        Common Crypto Library version is 8.5.19

        NW 7.31 SP 05 ,

        Kernel 7.21 SP 402

        Could you please advise why these parameters are not availiable and how can i configure SSO for this system.


        Abuzar Ehteshamuddin


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