How To Fix /IWFND/CM_MGW_RT143 - No entity type found for output node of function import '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_MGW_RT -

• Message number: 143

• Message text: No entity type found for output node of function import '&1'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_MGW_RT143 - No entity type found for output node of function import '&1' ?

  The SAP error message /IWFND/CM_MGW_RT143 No entity type found for output node of function import '&1' typically occurs in the context of SAP Gateway and OData services. This error indicates that the system is unable to find a corresponding entity type for the output node of a function import in your OData service.
  Cause:
  
  Missing Entity Type: The entity type that is expected as the output of the function import is not defined in the OData service metadata.
  Incorrect Function Import Definition: The function import may not be correctly defined in the service, or the output type may not be properly specified.
  Service Activation Issues: The OData service may not be activated or may have been changed without proper reactivation.
  Namespace Issues: There may be a mismatch in the namespace or naming conventions used in the service definition.
  
  Solution:
  
  
  Check Entity Type Definition:
  
  Go to the Service Builder (transaction code SEGW) and check if the entity type that should correspond to the output of the function import is defined.
  If it is missing, you need to create it.
  
  
  
  Review Function Import Definition:
  
  In the Service Builder, navigate to the function import and ensure that the output type is correctly defined.
  Make sure that the output type is set to the correct entity type.
  
  
  
  Activate the Service:
  
  After making any changes, ensure that you activate the service. You can do this in the Service Builder by clicking on the "Activate" button.
  Also, check if the service is registered and activated in the SAP Gateway (transaction code /IWFND/MAINT_SERVICE).
  
  
  
  Check Metadata:
  
  You can check the metadata of your OData service by accessing the service URL with $metadata appended (e.g., http://<host>:<port>/sap/opu/odata/sap/<service_name>/$metadata).
  Verify that the entity type is present in the metadata.
  
  
  
  Clear Cache:
  
  Sometimes, clearing the cache can resolve issues related to outdated metadata. You can do this by using transaction code /IWFND/CACHE and clearing the relevant caches.
  
  
  
  Check for Namespace Issues:
  
  Ensure that the namespace used in the function import and entity type definitions is consistent and correctly referenced.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SEGW: Service Builder for OData services.
  /IWFND/MAINT_SERVICE: Manage OData services.
  /IWFND/CACHE: Clear OData service cache.
  
  
  
  Documentation: Refer to SAP Help documentation for OData services and SAP Gateway for more detailed information on defining and managing OData services.
  
  
  By following these steps, you should be able to identify and resolve the issue causing the error message /IWFND/CM_MGW_RT143.