How To Fix S_UNIFIED_CON054 - UCON virtual host &1 already has host number &2

SAP Error Message - Details

• Message type: E = Error

• Message class: S_UNIFIED_CON - Message Class for Unified Connectivity

• Message number: 054

• Message text: UCON virtual host &1 already has host number &2

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 S_UNIFIED_CON054 - UCON virtual host &1 already has host number &2 ?

  The SAP error message S_UNIFIED_CON054 indicates that there is a conflict with the virtual host configuration in the SAP system. Specifically, it means that the virtual host specified already has an associated host number, which is causing a conflict.
  Cause:
  This error typically occurs when:
  
  You are trying to create or configure a virtual host that is already in use by another instance or configuration.
  There is a misconfiguration in the SAP system where the same virtual host is being assigned multiple host numbers.
  The system may have remnants of previous configurations that were not cleaned up properly.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Existing Virtual Hosts:
  
  Use transaction code SICF to check the existing virtual hosts and their configurations. Look for the virtual host that is causing the conflict.
  
  
  
  Review Host Number Assignments:
  
  Ensure that the host number you are trying to assign to the virtual host is not already in use. You can check the host number assignments in the SAP system configuration.
  
  
  
  Delete or Modify Conflicting Configuration:
  
  If you find that the virtual host is indeed already assigned to another host number, you may need to either delete that configuration or modify it to free up the host number.
  
  
  
  Restart the SAP Instance:
  
  After making changes, it may be necessary to restart the SAP instance to ensure that the changes take effect.
  
  
  
  Check for System Updates:
  
  Ensure that your SAP system is up to date with the latest patches and updates, as sometimes bugs in earlier versions can lead to such conflicts.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SICF: Used for managing HTTP services and virtual hosts.
  SM51: To check the status of SAP instances and their configurations.
  
  
  
  Documentation:
  
  Refer to the SAP Help Portal for documentation on configuring virtual hosts and managing HTTP services.
  
  
  
  SAP Community:
  
  Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it. If the issue persists, consider reaching out to SAP support for further assistance.