How To Fix /IWFND/CM_V4_COS155 - Required system alias '&1' not found

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_V4_COS -

• Message number: 155

• Message text: Required system alias '&1' not found

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_V4_COS155 - Required system alias '&1' not found ?

  The SAP error message /IWFND/CM_V4_COS155 Required system alias '&1' not found typically occurs in the context of SAP Gateway services when the system alias specified in the configuration is not recognized or does not exist in the system. This can happen for various reasons, such as misconfiguration, missing entries, or issues with the backend system.
  Cause:
  
  Missing System Alias: The specified system alias (&1) does not exist in the SAP Gateway configuration.
  Incorrect Configuration: The system alias may be incorrectly configured or misspelled in the service definition or in the backend system settings.
  Transport Issues: If the configuration was transported from another system, the system alias may not have been included in the transport.
  Authorization Issues: The user may not have the necessary authorizations to access the specified system alias.
  
  Solution:
  
  
  Check System Alias Configuration:
  
  Go to the SAP Gateway system and check the configuration of the system alias.
  Use transaction code /IWFND/MAINT_SERVICE to view the list of registered services and their associated system aliases.
  Ensure that the system alias you are trying to use is listed and correctly configured.
  
  
  
  Create or Update System Alias:
  
  If the system alias does not exist, you can create it using transaction code /IWFND/MAINT_SERVICE or /IWFND/CONFIG.
  Ensure that the alias points to the correct backend system and that all necessary parameters are set.
  
  
  
  Check Backend System:
  
  Ensure that the backend system is up and running and that the connection settings are correct.
  Test the connection to the backend system using transaction code SM59 to verify that the RFC destination is working.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access the system alias and the associated services.
  
  
  
  Transport Issues:
  
  If the configuration was transported, check the transport logs to ensure that the system alias was included and correctly transported.
  
  
  
  Restart Services:
  
  Sometimes, restarting the SAP Gateway service or the backend system can resolve temporary issues.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  /IWFND/MAINT_SERVICE: Manage OData services.
  /IWFND/CONFIG: Configuration settings for SAP Gateway.
  SM59: RFC destination configuration.
  
  
  
  Documentation: Refer to SAP Help Portal for detailed documentation on SAP Gateway and OData services.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to system aliases and OData services.
  
  
  By following these steps, you should be able to identify and resolve the issue related to the missing system alias in your SAP environment.