How To Fix /IWFND/CM_V4_RUNTIME004 - System query options not supported for functions

/IWFND/CM_V4_RUNTIME004 - Overview

• Message type: E = Error

• Message class: /IWFND/CM_V4_RUNTIME -

• Message number: 004

• Message text: System query options not supported for functions

Self-Explanatory Message

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/IWFND/CM_V4_RUNTIME004 - Details

• The SAP error message /IWFND/CM_V4_RUNTIME004 System query options not supported for functions typically occurs in the context of SAP Gateway and OData services when a query option that is not supported is used in a request to an OData service. This error is related to the way the OData service is designed and the capabilities it exposes.
  
  Cause:
  
  Unsupported Query Options: The error indicates that the OData service is being called with query options (like $filter, $orderby, $expand, etc.) that are not supported by the function import or the specific OData service being accessed.
  Function Import Limitations: Function imports in OData services may not support certain query options, especially if they are designed to perform specific actions rather than return collections of data.
  Service Definition: The OData service might not be properly defined to handle the requested query options.
  
  
  Solution:
  
  Check the OData Service Definition: Review the service definition in the SAP Gateway Service Builder (transaction