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

/IWBEP/CM_CP089 - Overview

• 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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/IWBEP/CM_CP089 - Details

• 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