How To Fix /IWBEP/CM_CP086 - If no business data is requested then expand is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_CP -

• Message number: 086

• Message text: If no business data is requested then expand is not allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_CP086 - If no business data is requested then expand is not allowed ?

  The SAP error message /IWBEP/CM_CP086 typically occurs in the context of OData services when a request is made to expand an entity relationship, but no business data is being requested. This can happen in scenarios where the OData service is expected to return related entities, but the main entity does not have any data to return.
  Cause:
  The error is triggered when:
  
  An OData request is made with an $expand query option, but the main entity does not have any data to return.
  The request is structured in such a way that it implies a need for related data, but the primary entity is empty or not found.
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Check the Request: Ensure that the OData request is correctly formed. If you are using $expand, make sure that the main entity actually has data. If there is no data for the main entity, you may need to adjust your request.
  
  
  Validate Entity Existence: Before making the request, validate that the main entity exists and has data. You can do this by querying the main entity without the $expand option.
  
  
  Modify the Query: If the main entity is not supposed to be empty, investigate why it is empty. If it is expected to be empty, consider removing the $expand option from your request.
  
  
  Check Service Implementation: If you are developing or maintaining the OData service, ensure that the service is correctly implemented to handle cases where the main entity might not have related data. You may need to implement logic to handle such scenarios gracefully.
  
  
  Debugging: If you have access to the backend, you can debug the OData service to see how it processes the request and why it is returning this error.
  
  
  Related Information:
  
  OData Protocol: Understanding the OData protocol and how it handles entity relationships can help in structuring your requests correctly.
  SAP Gateway: Familiarize yourself with SAP Gateway and how it manages OData services, as this can provide insights into common issues and best practices.
  SAP Notes: Check for any relevant SAP Notes or documentation that might address this specific error or provide additional context.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.