How To Fix /IWFND/CM_COS016 - Instance manager called with empty list of system aliases

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_COS -

• Message number: 016

• Message text: Instance manager called with empty list of system aliases

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_COS016 - Instance manager called with empty list of system aliases ?

  The SAP error message /IWFND/CM_COS016 Instance manager called with empty list of system aliases typically occurs in the context of SAP Gateway and OData services. This error indicates that the instance manager is being invoked without any valid system aliases, which are necessary for routing requests to the appropriate backend systems.
  Cause:
  
  Configuration Issues: The system aliases may not be properly configured in the SAP Gateway system. This can happen if the backend systems are not defined or if there are issues with the configuration of the OData service.
  Missing System Aliases: The system aliases required for the OData service to function are missing or not activated.
  Transport Issues: If the configuration was recently transported from another system, it may not have included the necessary system aliases.
  Authorization Issues: There may be authorization issues preventing the system from accessing the defined system aliases.
  
  Solution:
  
  
  Check System Aliases:
  
  Go to the SAP Gateway system and check the configuration of the system aliases.
  Use transaction code /IWFND/MAINT_SERVICE to check if the OData service is correctly registered and if the system aliases are defined.
  
  
  
  Define System Aliases:
  
  If system aliases are missing, you can define them using transaction code /IWFND/MAINT_SERVICE or /IWFND/CONFIG.
  Ensure that the backend system is correctly configured and that the system alias points to the correct backend.
  
  
  
  Activate Services:
  
  Ensure that the OData service is activated. You can do this in the same transaction mentioned above.
  Check if the service is in the "Active" state.
  
  
  
  Check Authorization:
  
  Verify that the user has the necessary authorizations to access the system aliases and the OData service.
  Check the roles and authorizations assigned to the user.
  
  
  
  Review Transport Requests:
  
  If the configuration was transported, ensure that all necessary objects were included in the transport request.
  You may need to manually configure the system aliases in the target system.
  
  
  
  Check Logs:
  
  Review the application logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Refer to the official SAP documentation for OData services and SAP Gateway for more detailed configuration steps.
  Community Forums: Consider checking SAP Community forums or other online resources for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify and resolve the issue related to the /IWFND/CM_COS016 error message.