How To Fix /IWFND/CM_V4_COS153 - Too many default system aliases for service group '&1' and user '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_V4_COS -

• Message number: 153

• Message text: Too many default system aliases for service group '&1' and user '&2'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_V4_COS153 - Too many default system aliases for service group '&1' and user '&2' ?

  The SAP error message /IWFND/CM_V4_COS153 indicates that there are too many default system aliases configured for a specific service group and user. This typically occurs in the context of SAP Gateway services, where the system is trying to resolve a service but finds that there are too many aliases defined, leading to ambiguity.
  Cause:
  
  
  Excessive Default Aliases: The error is triggered when there are multiple default system aliases defined for a service group and user combination. This can happen if:
  
  Multiple service definitions have been created for the same service group.
  There are configuration issues or inconsistencies in the service definitions.
  
  
  
  Configuration Errors: Incorrect or redundant configurations in the SAP Gateway service might lead to the system being unable to determine which alias to use.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Service Definitions:
  
  Go to the SAP Gateway Service Builder (transaction code SEGW) and check the service definitions for the service group in question.
  Ensure that there are no duplicate or unnecessary service definitions.
  
  
  
  Review System Aliases:
  
  Use transaction code /IWFND/MAINT_SERVICE to review the registered services and their associated system aliases.
  Identify and remove any redundant or unnecessary aliases that may be causing the conflict.
  
  
  
  Adjust Configuration:
  
  If you find that there are too many aliases, consider consolidating them or adjusting the configuration to ensure that only the necessary aliases are defined.
  
  
  
  Clear Cache:
  
  After making changes, clear the cache to ensure that the changes take effect. You can do this using transaction code /IWFND/CACHE and selecting the appropriate options to clear the cache.
  
  
  
  Test the Service:
  
  After making the necessary adjustments, test the service again to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  Documentation: Review the SAP Gateway documentation for best practices on managing service definitions and aliases.
  Support: If the issue persists after following the above steps, consider reaching out to SAP support for further assistance.
  
  By following these steps, you should be able to resolve the /IWFND/CM_V4_COS153 error and ensure that your SAP Gateway services function correctly.