How To Fix /IWBEP/CM_SBMC_MPC023 - Right Entity ;&1' of Association '&2' is not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_SBMC_MPC -

• Message number: 023

• Message text: Right Entity ;&1' of Association '&2' is not defined

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_SBMC_MPC023 - Right Entity ;&1' of Association '&2' is not defined ?

  The SAP error message /IWBEP/CM_SBMC_MPC023 typically occurs in the context of SAP Gateway and OData services when there is an issue with the definition of associations in your OData model. This error indicates that the right entity of an association is not defined, which means that the OData service is trying to reference an entity that has not been properly defined in the model.
  Cause:
  
  Missing Entity Definition: The entity that is supposed to be associated with another entity is not defined in the OData model.
  Incorrect Association Definition: The association might be incorrectly defined in the metadata, leading to a mismatch between the entities.
  Model Inconsistencies: There may be inconsistencies in the data model, such as missing or incorrectly configured relationships between entities.
  Service Registration Issues: The OData service might not be properly registered or activated in the SAP Gateway.
  
  Solution:
  
  Check Entity Definitions: Ensure that all entities involved in the association are correctly defined in the OData model. Verify that the entity you are trying to reference exists.
  Review Association Definitions: Go to the Data Model (in SEGW transaction) and check the associations. Make sure that the association is correctly defined and that both ends of the association are pointing to valid entities.
  Regenerate the Service: If you have made changes to the model, regenerate the service in the SAP Gateway Service Builder (transaction SEGW) to ensure that the changes are reflected in the service.
  Check Metadata: Use the OData service URL to check the metadata (e.g., http://<host>:<port>/sap/opu/odata/sap/<service_name>/$metadata) and verify that the entities and associations are correctly defined.
  Activate the Service: Ensure that the OData service is activated in the SAP Gateway (transaction /IWFND/MAINT_SERVICE).
  Debugging: If the issue persists, consider debugging the OData service to trace where the error is occurring and gather more context about the problem.
  
  Related Information:
  
  Transaction Codes:
  
  SEGW: Service Builder for OData services.
  /IWFND/MAINT_SERVICE: Maintenance of OData services.
  /IWBEP/REG_SERVICE: Register OData services.
  
  
  Documentation: Refer to SAP Help documentation for OData services and the SAP Gateway for detailed information on defining entities and associations.
  SAP Notes: Check for any relevant SAP Notes that might address known issues related to this error message.
  
  By following these steps, you should be able to identify and resolve the issue causing the error message /IWBEP/CM_SBMC_MPC023.