How To Fix /IWBEP/CM_V4_MED380 - Parameter '&1' on operation '&2' is not primitive type based

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 380

• Message text: Parameter '&1' on operation '&2' is not primitive 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_MED380 - Parameter '&1' on operation '&2' is not primitive type based ?

  The SAP error message /IWBEP/CM_V4_MED380 indicates that there is an issue with the data type of a parameter in an OData service operation. Specifically, the error message states that the parameter &1 on operation &2 is not of a primitive type. In OData, primitive types include basic data types such as String, Int, Boolean, etc. Non-primitive types could be complex types or collections.
  Cause:
  
  Incorrect Data Type Definition: The parameter in question is defined as a complex type or collection in the OData service, but the operation expects a primitive type.
  Service Implementation Error: The implementation of the OData service might be incorrectly handling the parameter, leading to a mismatch between the expected and actual data types.
  Model Configuration Issues: There may be issues in the data model configuration, where the parameter is not correctly defined in the metadata.
  
  Solution:
  
  Check Parameter Definition: Review the definition of the parameter in the OData service. Ensure that it is defined as a primitive type if that is what the operation expects.
  Update Service Implementation: If the parameter is intended to be a complex type, update the service implementation to handle it correctly. If it should be a primitive type, modify the definition accordingly.
  Review Metadata: Check the OData service metadata (usually accessible via the $metadata endpoint) to confirm the data types of the parameters and ensure they match the expected types in the operation.
  Regenerate Service: If changes are made to the data model or service definitions, regenerate the OData service to ensure that the changes are reflected in the service implementation.
  Testing: After making the necessary changes, test the OData service to ensure that the error is resolved and that the operation works as expected.
  
  Related Information:
  
  OData Service Documentation: Refer to the official SAP documentation on OData services for guidance on defining parameters and data types.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  Debugging Tools: Utilize SAP debugging tools to trace the execution of the OData service and identify where the type mismatch occurs.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service operates correctly.