How To Fix 00467 - Communication system error: snaopen failed. Check LU

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 467

• Message text: Communication system error: snaopen failed. Check LU

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 00467 - Communication system error: snaopen failed. Check LU ?

  The SAP error message "00467 Communication system error: snaopen failed. Check LU" typically indicates a problem with the communication setup between the SAP system and the underlying network infrastructure, particularly when using SNA (Systems Network Architecture) for communication. This error can occur in environments where SAP is integrated with IBM mainframes or other systems that utilize SNA for communication.
  Causes:
  
  Network Configuration Issues: There may be misconfigurations in the network settings, such as incorrect Logical Unit (LU) names or parameters.
  SNA Configuration Problems: The SNA configuration on the SAP system or the mainframe may not be set up correctly.
  Connection Issues: The connection to the SNA server may be down or unreachable due to network issues.
  Resource Availability: The required resources (like LU) may not be available or may be incorrectly defined.
  Firewall or Security Settings: Firewalls or security settings may be blocking the communication between the SAP system and the SNA server.
  
  Solutions:
  
  Check LU Configuration: Verify that the Logical Unit (LU) names and configurations are correct in both the SAP system and the SNA server. Ensure that the LU is defined and active.
  Network Connectivity: Test the network connectivity between the SAP system and the SNA server. Use tools like ping or traceroute to check for connectivity issues.
  Review SNA Configuration: Ensure that the SNA configuration parameters in the SAP system are correctly set. This includes checking the SNA connection parameters in the SAP profile.
  Check System Logs: Review the SAP system logs (transaction SM21) and the SNA logs for any additional error messages or warnings that could provide more context.
  Firewall Settings: If applicable, check firewall settings to ensure that the necessary ports for SNA communication are open and not being blocked.
  Restart Services: Sometimes, restarting the relevant services or the entire SAP system can resolve transient issues.
  Consult Documentation: Refer to SAP Notes or documentation related to SNA configuration for specific guidance on your version of SAP.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to SNA communication errors. You can search for relevant notes in the SAP Support Portal.
  Documentation: Review the SAP Basis documentation for detailed information on configuring SNA connections.
  Support: If the issue persists, consider reaching out to SAP support or your network administrator for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the "00467 Communication system error: snaopen failed. Check LU" error in your SAP environment.