How To Fix /IWBEP/CM_V4_RUNTIME135 - Target parameter '&1' must be complex

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_RUNTIME -

• Message number: 135

• Message text: Target parameter '&1' must be complex

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_RUNTIME135 - Target parameter '&1' must be complex ?

  The SAP error message /IWBEP/CM_V4_RUNTIME135 indicates that a target parameter in your OData service is expected to be a complex type, but it is not being provided as such. This error typically occurs when you are trying to pass a parameter that is defined as a complex type in the OData service, but the data being sent does not match the expected structure.
  Cause:
  
  Incorrect Data Structure: The data being sent to the OData service does not match the expected complex type structure. For example, if the complex type is expected to have multiple properties, but only a single value or an incorrect structure is provided.
  Service Definition Mismatch: The OData service definition may have changed, and the client application is not updated to reflect these changes.
  Serialization Issues: There may be issues with how the data is serialized before being sent to the OData service.
  
  Solution:
  
  Check the OData Service Definition: Review the OData service metadata to understand the expected structure of the complex type. Ensure that the data being sent matches this structure.
  Update Client Code: If you are using a client application to call the OData service, ensure that the code is updated to construct the complex type correctly. This may involve creating an object that matches the expected properties of the complex type.
  Test with Sample Data: Use tools like Postman or SAP Gateway Client to test the OData service with sample data that matches the expected complex type structure. This can help isolate the issue.
  Debugging: If you have access to the backend, consider debugging the OData service to see what data is being received and how it is being processed.
  Consult Documentation: Refer to the SAP documentation for the specific OData service you are working with to ensure you are following the correct guidelines for data structure.
  
  Related Information:
  
  OData Protocol: Understanding the OData protocol and how complex types are defined and used can be beneficial. Complex types in OData are typically defined in the service metadata and can contain multiple properties.
  SAP Gateway: If you are working with SAP Gateway, familiarize yourself with the tools and transaction codes (like /IWFND/MAINT_SERVICE) that can help you manage and test OData services.
  Error Handling: Implement error handling in your client application to gracefully manage and log errors when they occur, which can help in troubleshooting.
  
  By ensuring that the data structure matches the expected complex type and updating any client code accordingly, you should be able to resolve the error.