How To Fix /IWBEP/CM_V4_MED229 - Parameter '&1' on function '&2' is not primitive type based

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 229

• Message text: Parameter '&1' on function '&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_MED229 - Parameter '&1' on function '&2' is not primitive type based ?

  The SAP error message /IWBEP/CM_V4_MED229 indicates that there is an issue with the parameter type in a function module or method that is being called in an OData service. Specifically, the error message states that the parameter &1 on function &2 is not of a primitive type. In the context of OData services, primitive types refer to basic data types such as String, Int, Boolean, etc.
  Cause:
  
  Non-Primitive Data Type: The parameter in question is likely defined as a complex type or a structure rather than a primitive type. OData services expect parameters to be of primitive types for certain operations, especially when dealing with query parameters or function imports.
  Incorrect Mapping: There may be an issue with how the parameter is mapped in the OData service definition. If the parameter is expected to be a primitive type but is defined as a complex type in the service, this error will occur.
  Service Definition Issues: The service definition in the SAP Gateway might not be correctly set up to handle the parameter types as intended.
  
  Solution:
  
  Check Parameter Definition: Review the definition of the function module or method that is being called. Ensure that the parameter &1 is defined as a primitive type. If it is a complex type, consider changing it to a primitive type if that aligns with your business logic.
  Update OData Service: If the parameter needs to remain a complex type, you may need to adjust the OData service definition to accommodate this. This could involve creating a new complex type in the OData model and ensuring that the service is correctly configured to handle it.
  Regenerate the Service: After making changes to the parameter definitions, regenerate the OData service and re-activate it. This ensures that the changes are reflected in the service metadata.
  Test the Service: After making the necessary changes, test the OData service to ensure that the error is resolved and that the service behaves as expected.
  
  Related Information:
  
  OData Service Development: Familiarize yourself with the OData service development process in SAP, including how to define and manage entity types, complex types, and primitive types.
  SAP Gateway: Understanding the SAP Gateway framework can help in troubleshooting issues related to OData services.
  SAP Notes and Documentation: Check for any relevant SAP Notes or documentation that may provide additional insights or updates related to this error message.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting the SAP community for further assistance.