How To Fix /IWBEP/CM_CP099 - If no business data is requested then order by is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_CP -

• Message number: 099

• Message text: If no business data is requested then order by 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_CP099 - If no business data is requested then order by is not allowed ?

  The SAP error message /IWBEP/CM_CP099 typically occurs in the context of OData services when there is an issue with the query being sent to the backend system. The error message states: "If no business data is requested then order by is not allowed." This indicates that the OData service is trying to apply an ORDER BY clause to a query that does not include any business data (i.e., no actual fields are being requested).
  Cause:
  
  Empty Select Statement: The client (e.g., an application or a frontend) is making a request to the OData service without specifying any fields to retrieve. This can happen if the request is malformed or if the client is not configured correctly.
  Incorrect Query Parameters: The request might include an ORDER BY clause without any corresponding fields in the SELECT statement, leading to this error.
  Service Configuration: The OData service might be configured in a way that does not allow ordering when no data is being requested.
  
  Solution:
  
  
  Check the Request: Ensure that the OData request includes a valid SELECT statement with at least one field specified. For example, instead of requesting ?$orderby=FieldName, ensure that you also include ?$select=FieldName.
  Example:
  /YourService/EntitySet?$select=FieldName1,FieldName2&$orderby=FieldName1
  
  
  Modify the Client Logic: If you are developing the client application, ensure that it constructs the OData query correctly, including both the fields to select and any ordering criteria.
  
  
  Review Service Implementation: If you are the developer of the OData service, review the implementation to ensure that it handles requests correctly and provides meaningful error messages when the request is invalid.
  
  
  Testing: Use tools like Postman or SAP Gateway Client to test the OData service with different queries to ensure that it behaves as expected.
  
  
  Related Information:
  
  OData Protocol: Understanding the OData protocol and how it handles queries can help in troubleshooting issues related to data retrieval.
  SAP Gateway: Familiarize yourself with SAP Gateway and how it processes OData requests, as this can provide insights into how to structure your queries.
  SAP Notes: Check for any relevant SAP Notes or documentation that might address this specific error or provide additional context.
  
  By ensuring that your OData requests are well-formed and include the necessary fields, you should be able to resolve the /IWBEP/CM_CP099 error.