1S303 - SSF kernel error: invalid operation code

SAP Error Message - Details

• Message type: E = Error

• Message class: 1S - Messages for SSF ("Secure Store & Forward")

• Message number: 303

• Message text: SSF kernel error: invalid operation code

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 1S303 - SSF kernel error: invalid operation code ?

  The SAP error message "1S303 SSF kernel error: invalid operation code" typically relates to issues with the Secure Store and Forward (SSF) interface in SAP systems. This error can occur during operations that involve cryptographic functions, such as digital signatures or encryption, and is often associated with the underlying cryptographic libraries or configurations.
  Causes:
  
  Incorrect SSF Configuration: The SSF interface may not be properly configured, leading to invalid operation codes being sent to the SSF kernel.
  Missing or Corrupted SSF Kernel: The SSF kernel or the associated libraries may be missing, outdated, or corrupted.
  Incompatible Cryptographic Libraries: The version of the cryptographic libraries being used may not be compatible with the SAP system or the SSF interface.
  Authorization Issues: The user or process attempting to perform the operation may not have the necessary authorizations.
  System Environment Issues: Problems with the operating system or environment settings can also lead to this error.
  
  Solutions:
  
  
  Check SSF Configuration:
  
  Verify the SSF configuration in the SAP system. Ensure that the SSF parameters are correctly set in transaction RZ10 or RZ11.
  Check the SSF settings in transaction STRUST to ensure that the correct cryptographic provider is configured.
  
  
  
  Update or Reinstall SSF Kernel:
  
  Ensure that the SSF kernel is up to date. You can download the latest version from the SAP Service Marketplace.
  If the kernel is corrupted, consider reinstalling it.
  
  
  
  Verify Cryptographic Libraries:
  
  Check the compatibility of the cryptographic libraries with your SAP version. Ensure that you are using the recommended versions.
  If necessary, update the libraries to the latest versions.
  
  
  
  Check Authorizations:
  
  Ensure that the user or process has the necessary authorizations to perform the operation. Review the roles and permissions assigned.
  
  
  
  Review System Logs:
  
  Check the system logs (transaction SM21) and the developer traces (transaction ST22) for any additional error messages that may provide more context.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. There may be patches or specific instructions provided by SAP.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  RZ10 and RZ11 for profile parameters.
  STRUST for managing SSL and cryptographic settings.
  SM21 for system logs.
  ST22 for dump analysis.
  
  
  
  Documentation: Review the SAP documentation related to SSF and cryptographic services for more detailed configuration steps and troubleshooting tips.
  
  
  By following these steps, you should be able to diagnose and resolve the "1S303 SSF kernel error: invalid operation code" in your SAP system.