How To Fix /IWBEP/CM_V4_MED377 - Parameter '&1' on function '&2' is not entity type based

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 377

• Message text: Parameter '&1' on function '&2' is not entity type based

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED377 - Parameter '&1' on function '&2' is not entity type based ?

  The SAP error message /IWBEP/CM_V4_MED377 indicates that there is an issue with the parameters being passed to a function in an OData service. Specifically, the error states that the parameter &1 on function &2 is not based on an entity type. This typically occurs when the OData service is expecting a parameter that should be linked to an entity type, but the provided parameter does not meet that requirement.
  Cause:
  
  Incorrect Parameter Type: The parameter being passed to the function is not defined as an entity type in the OData service metadata.
  Service Definition Issues: The OData service may not be correctly defined in the backend, leading to mismatches between expected and actual parameter types.
  Model Configuration: The data model may not be properly configured to recognize the parameter as an entity type.
  Incorrect Function Call: The function being called may not be designed to accept the parameter in the way it is being provided.
  
  Solution:
  
  Check OData Service Metadata: Review the metadata of the OData service to ensure that the parameter is defined as an entity type. You can access the metadata by appending $metadata to the service URL.
  Review Function Import: Ensure that the function import in the OData service is correctly defined and that the parameters match the expected entity types.
  Adjust Parameter Mapping: If the parameter is not an entity type, consider adjusting the mapping or the way the parameter is being passed to the function.
  Debugging: Use debugging tools in SAP (like transaction code /IWFND/ERROR_LOG) to get more details about the error and trace the function call.
  Consult Documentation: Refer to SAP documentation or community forums for guidance on the specific function and its expected parameters.
  
  Related Information:
  
  OData Services: Understanding how OData services work in SAP can help in troubleshooting issues related to entity types and parameters.
  SAP Gateway: Familiarize yourself with SAP Gateway concepts, as it plays a crucial role in the creation and consumption of OData services.
  SAP Community: Engage with the SAP Community for insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.