How To Fix /IWBEP/CM_CP089 - If no business data is requested then select is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_CP -

• Message number: 089

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

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_CP089 - If no business data is requested then select is not allowed ?

  The SAP error message /IWBEP/CM_CP089 typically occurs in the context of SAP Gateway and OData services. This error indicates that a request was made to an OData service without specifying any business data, which is not allowed. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Empty Request: The error usually arises when an OData request is made without any filters or parameters that specify which business data to retrieve. For example, if a GET request is made to an entity set without any key or filter, the system does not know what data to return.
  Service Configuration: The OData service might be configured in such a way that it requires certain parameters to be passed in the request.
  Incorrect URL: The URL used to call the OData service might be incorrect or incomplete, leading to a request that does not specify any data.
  
  Solutions:
  
  
  Check the Request: Ensure that the OData request includes the necessary parameters or filters. For example, if you are trying to retrieve a specific entity, make sure to include the entity key in the URL.
  
  Example: Instead of calling /entitySet, call /entitySet('keyValue').
  
  
  
  Review Service Documentation: Check the documentation for the OData service to understand the required parameters and the expected format of the request.
  
  
  Use Query Options: If applicable, use query options like $filter, $select, or $expand to specify the data you want to retrieve.
  
  Example: /entitySet?$filter=property eq 'value'.
  
  
  
  Debugging: If you have access to the backend, you can debug the OData service to see how it processes incoming requests and identify why it is rejecting the request.
  
  
  Service Activation: Ensure that the OData service is properly activated in the SAP Gateway. Sometimes, services may not be fully activated or may have issues that prevent them from processing requests correctly.
  
  
  Check Authorization: Ensure that the user making the request has the necessary authorizations to access the data.
  
  
  Related Information:
  
  SAP Gateway: This is the technology that allows you to connect devices, environments, and applications to SAP systems. Understanding how it works can help in troubleshooting issues related to OData services.
  OData Protocol: Familiarize yourself with the OData protocol, which defines how to create and consume RESTful APIs. This knowledge can help in constructing valid requests.
  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 resolve the error message /IWBEP/CM_CP089 and successfully retrieve the desired business data from the OData service.