How To Fix 1S307 - SSF Kernel error: Error in the recipient list

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 307

• Message text: SSF Kernel error: Error in the recipient list

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 1S307 - SSF Kernel error: Error in the recipient list ?

  The SAP error message 1S307 SSF Kernel error: Error in the recipient list typically occurs in the context of Secure Store and Forward (SSF) operations, which are used for secure communication and data encryption in SAP systems. This error indicates that there is an issue with the recipient list used for encryption or signing operations.
  Causes:
  
  Invalid Recipient List: The recipient list may contain invalid or incorrectly configured entries.
  Missing Certificates: The required public keys or certificates for the recipients may be missing or not properly installed in the system.
  Configuration Issues: There may be misconfigurations in the SSF settings or the cryptographic settings in the SAP system.
  Expired Certificates: The certificates used for encryption may have expired.
  Network Issues: If the system is trying to access a remote service for certificate retrieval, network issues could prevent this.
  
  Solutions:
  
  Check Recipient List: Verify the recipient list being used in the operation. Ensure that all entries are valid and correctly configured.
  Install Missing Certificates: If any required certificates are missing, install them in the appropriate keystore or trust store.
  Update Certificates: Check for expired certificates and update them as necessary.
  Review SSF Configuration: Go to transaction STRUST in SAP and review the SSF settings. Ensure that the SSL settings and the cryptographic libraries are correctly configured.
  Test Connectivity: If the system relies on external services for certificate retrieval, ensure that there are no network issues preventing access.
  Check Logs: Review the SAP application logs (transaction SLG1) for more detailed error messages that may provide additional context for the issue.
  
  Related Information:
  
  Transaction STRUST: This transaction is used to manage SSL certificates and trust relationships in SAP.
  Transaction SM21: Use this transaction to check the system log for any related errors or warnings that might provide more context.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide patches and updates.
  Documentation: Review the SAP documentation on SSF and cryptographic services for best practices and configuration guidelines.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with SAP support or your system administrator for further assistance.