How To Fix /IWBEP/CM_V4_RUNTIME141 - Target operation return is not complex

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_RUNTIME -

• Message number: 141

• Message text: Target operation return is not complex

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_RUNTIME141 - Target operation return is not complex ?

  The SAP error message /IWBEP/CM_V4_RUNTIME141 Target operation return is not complex typically occurs in the context of SAP Gateway and OData services. This error indicates that the response from a target operation (like a service call) is not in the expected format, which is usually a complex type. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Response Format: The OData service is expected to return a complex type (like an entity or a collection of entities), but it is returning a simple type (like a string, number, etc.) instead.
  Service Definition: The service definition in the OData model may not be correctly set up to handle the expected response type.
  Implementation Issues: There may be issues in the implementation of the service method that is supposed to return a complex type.
  Data Model Mismatch: The data model defined in the OData service may not match the actual data being returned from the backend.
  
  Solutions:
  
  
  Check Service Implementation: Review the implementation of the OData service method to ensure that it is returning the correct data type. If the method is supposed to return a complex type, ensure that it is not inadvertently returning a simple type.
  
  
  Review OData Model: Check the OData model definition to ensure that the entity types and their properties are correctly defined. Make sure that the expected return type is marked as complex in the service metadata.
  
  
  Debugging: Use debugging tools to trace the execution of the service and inspect the response being generated. This can help identify where the response is being incorrectly formatted.
  
  
  Check Backend Logic: If the OData service is calling a backend function module or method, ensure that the backend logic is correctly returning the expected data structure.
  
  
  Test with Different Clients: Sometimes, the issue may be with the client consuming the OData service. Test the service using different clients (like Postman or SAP Gateway Client) to see if the issue persists.
  
  
  Update Service Metadata: If changes have been made to the service or data model, ensure that the service metadata is updated. You can do this by regenerating the service or refreshing the metadata.
  
  
  Related Information:
  
  SAP Gateway: Familiarize yourself with the SAP Gateway framework and how it handles OData services. Understanding the architecture can help in troubleshooting.
  OData Protocol: Review the OData protocol specifications to understand the expected response formats and data types.
  SAP Notes: Check SAP Notes and Knowledge Base Articles for any known issues or patches related to this error message.
  Community Forums: Engage with SAP community forums or support channels for additional 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 solution to resolve it.