How To Fix 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  Missing or Corrupted SSF Kernel: The SSF kernel or the associated libraries may be missing, outdated, or corrupted.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