How To Fix /IWBEP/CM_V4_MED371 - Entity type '&1' does not exist; "Entity Type specific" complex type '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 371

• Message text: Entity type '&1' does not exist; "Entity Type specific" complex type '&2'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED371 - Entity type '&1' does not exist; "Entity Type specific" complex type '&2' ?

  The SAP error message /IWBEP/CM_V4_MED371 indicates that there is an issue with the OData service where the specified entity type does not exist. This error typically arises in the context of SAP Gateway and OData services when there is a mismatch or misconfiguration in the service definition.
  Cause:
  
  Entity Type Not Defined: The entity type specified in the error message (&1) is not defined in the data model of the OData service.
  Incorrect Service Registration: The OData service may not be properly registered or activated in the SAP Gateway.
  Model Changes: If there have been recent changes to the data model (like adding or removing entity types) without updating the service, it can lead to this error.
  Namespace Issues: The entity type might be defined in a different namespace that is not being referenced correctly.
  Complex Type Issues: The complex type specified (&2) may also not be defined or may not be correctly associated with the entity type.
  
  Solution:
  
  
  Check Entity Type Definition:
  
  Go to the SAP Gateway Service Builder (transaction code SEGW).
  Verify that the entity type (&1) is defined in the data model.
  If it is missing, you may need to create it or ensure that it is included in the service.
  
  
  
  Activate the Service:
  
  Ensure that the OData service is activated. You can do this in the SAP Gateway Service Maintenance (transaction code /IWFND/MAINT_SERVICE).
  Check if the service is listed and activated. If not, activate it.
  
  
  
  Regenerate the Service:
  
  If changes were made to the data model, regenerate the service by right-clicking on the service in the Service Builder and selecting "Generate".
  This will update the service with the latest definitions.
  
  
  
  Check for Namespace Issues:
  
  Ensure that the entity type is being referenced with the correct namespace. If you are using a custom namespace, make sure it is correctly defined in the service.
  
  
  
  Review Complex Types:
  
  Check if the complex type (&2) is defined and correctly associated with the entity type. If it is missing, you may need to define it in the service.
  
  
  
  Test the Service:
  
  After making the necessary changes, test the OData service using the SAP Gateway Client (transaction code /IWFND/GW_CLIENT) to ensure that the error is resolved.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SEGW: Service Builder for OData services.
  /IWFND/MAINT_SERVICE: Service Maintenance for OData services.
  /IWFND/GW_CLIENT: Gateway Client for testing OData services.
  
  
  
  Documentation: Refer to SAP Help documentation for OData services and SAP Gateway for detailed guidance on service creation and troubleshooting.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  
  
  By following these steps, you should be able to identify and resolve the issue causing the /IWBEP/CM_V4_MED371 error message.