How To Fix 00479 - No value for GWHOST side info entry (check side info)

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 479

• Message text: No value for GWHOST side info entry (check side info)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 00479 - No value for GWHOST side info entry (check side info) ?

  The SAP error message "00479 No value for GWHOST side info entry (check side info)" typically occurs in the context of SAP's distributed systems or when dealing with the Gateway (GW) service. This error indicates that there is a missing or incorrect configuration for the Gateway host in the side information table.
  Cause:
  
  Missing Configuration: The GWHOST entry in the side information table is not defined or is missing.
  Incorrect Configuration: The GWHOST entry may be incorrectly configured, leading to the system being unable to find the necessary information.
  Network Issues: There may be network connectivity issues preventing the system from accessing the required Gateway host.
  System Changes: Changes in the system landscape, such as system upgrades or migrations, may have led to the loss of configuration.
  
  Solution:
  
  
  Check Side Information Table:
  
  Use transaction code SMGW to access the Gateway Monitor.
  Check the side information entries to ensure that the GWHOST is correctly defined.
  You can also check the side information using transaction SM51 to see the list of application servers and their configurations.
  
  
  
  Update Configuration:
  
  If the GWHOST entry is missing, you will need to add it. This can typically be done in the SAP system configuration settings.
  If it is incorrect, update it with the correct values.
  
  
  
  Check Network Connectivity:
  
  Ensure that there are no network issues preventing communication between the systems.
  Use tools like ping or traceroute to verify connectivity to the Gateway host.
  
  
  
  Review System Changes:
  
  If there have been recent changes to the system, review those changes to ensure that they did not inadvertently affect the Gateway configuration.
  
  
  
  Restart Gateway:
  
  Sometimes, simply restarting the Gateway service can resolve transient issues.
  
  
  
  Consult Documentation:
  
  Refer to SAP Notes or documentation related to your specific version of SAP for any additional troubleshooting steps or known issues.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that may provide more context.
  
  If the issue persists after following these steps, it may be necessary to involve your SAP Basis team or SAP support for further assistance.