How To Fix SPN015 - Front-end control SNCAX.DLL not installed

SAP Error Message - Details

• Message type: E = Error

• Message class: SPN - SPnego

• Message number: 015

• Message text: Front-end control SNCAX.DLL not installed

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Install the front-end control <ZK>SNCAX.DLL </>on your Microsoft Windows
operating system.
It comes with SAP Single Sign-On 2.0 or higher. For more information,
see SAP Note 1943266.
&RESTRICTIONS&
You can use the KERBEROS or SPNEGO transaction without the front-end
control. In this case, the consistency check of the Service Principal
Names and of the Kerberos User Principal's password is not available.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SPN015 - Front-end control SNCAX.DLL not installed ?

  The SAP error message SPN015 indicates that the front-end control SNCAX.DLL is not installed on your system. This DLL is part of the Secure Network Communications (SNC) component, which is used for secure communication between the SAP GUI and the SAP server.
  Cause:
  The error typically occurs due to one of the following reasons:
  
  Missing DLL: The SNCAX.DLL file is not present in the SAP GUI installation directory.
  Incorrect Installation: The SAP GUI was not installed correctly, or the SNC component was not selected during installation.
  Version Mismatch: The version of the SAP GUI installed may not be compatible with the version of the SNC library required by the SAP server.
  Configuration Issues: The SAP GUI may not be configured to use SNC, or the SNC settings may be incorrect.
  
  Solution:
  To resolve the SPN015 error, you can follow these steps:
  
  
  Check Installation:
  
  Ensure that the SAP GUI is installed correctly. If necessary, reinstall the SAP GUI and make sure to include the SNC component during installation.
  
  
  
  Locate SNCAX.DLL:
  
  Check the installation directory of the SAP GUI (usually found in C:\Program Files (x86)\SAP\FrontEnd\SAPgui or similar) to see if SNCAX.DLL is present.
  If it is missing, you may need to reinstall the SAP GUI or copy the DLL from another installation.
  
  
  
  Update SAP GUI:
  
  Ensure that you are using the latest version of the SAP GUI. Check the SAP Support Portal for updates or patches that may address this issue.
  
  
  
  Configure SNC:
  
  If you are using SNC, ensure that the configuration settings in the SAP GUI are correct. You can check this in the SAP GUI options under the "Security" tab.
  Make sure that the SNC parameters (like snc/enable and snc/identity) are set correctly in the SAP system.
  
  
  
  Check Environment Variables:
  
  Ensure that the environment variables related to SNC are set correctly. This may include variables like SNC_LIB pointing to the directory containing the SNC libraries.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or the SAP Notes related to SNC for more detailed troubleshooting steps.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific fixes or updates related to the SPN015 error.
  SNC Documentation: Review the documentation on Secure Network Communications for more information on configuration and requirements.
  SAP Community: Engage with the SAP Community forums for additional insights and solutions from other users who may have encountered the same issue.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP Basis team or SAP support for further assistance.