How To Fix /IWFND/CM_MGW_RT164 - Name for complex type '&1' was not provided

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_MGW_RT -

• Message number: 164

• Message text: Name for complex type '&1' was not provided

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_MGW_RT164 - Name for complex type '&1' was not provided ?

  The SAP error message /IWFND/CM_MGW_RT164 Name for complex type '&1' was not provided typically occurs in the context of SAP Gateway and OData services. This error indicates that a complex type definition is missing a name, which is required for the OData service to function correctly.
  Cause:
  
  Missing Name in Complex Type Definition: The error usually arises when a complex type is defined in the OData service but does not have a name assigned to it. This can happen during the creation or modification of the OData service in the SAP Gateway Service Builder (transaction code SEGW).
  Incorrect Metadata: If the metadata for the OData service is not correctly defined or is incomplete, it can lead to this error.
  Model Issues: There may be issues with the data model or the way entities and complex types are structured in the service.
  
  Solution:
  
  
  Check Complex Type Definitions:
  
  Go to the SAP Gateway Service Builder (transaction code SEGW).
  Open the relevant project and navigate to the "Data Model" section.
  Check the complex types defined in your project. Ensure that each complex type has a valid name and is properly defined.
  
  
  
  Update Metadata:
  
  If you have made changes to the data model, ensure that you regenerate the metadata for the OData service. You can do this by right-clicking on the project and selecting "Generate" or "Regenerate".
  
  
  
  Check for Errors in the Model:
  
  Look for any inconsistencies or errors in the data model. Ensure that all entities and complex types are correctly defined and linked.
  
  
  
  Activate the Service:
  
  After making changes, ensure that the OData service is activated. You can do this in the Service Maintenance (transaction code /IWFND/MAINT_SERVICE).
  
  
  
  Test the Service:
  
  Use the SAP Gateway Client (transaction code /IWFND/GW_CLIENT) to test the OData service and verify that the error has been resolved.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SEGW: SAP Gateway Service Builder
  /IWFND/MAINT_SERVICE: Service Maintenance
  /IWFND/GW_CLIENT: SAP Gateway Client for testing OData services
  
  
  
  Documentation: Refer to the official SAP documentation for OData services and SAP Gateway for more detailed information on complex types and service definitions.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.
  
  
  By following these steps, you should be able to resolve the error and ensure that your OData service functions correctly.