Getting No data in excel through Export Data Store Entity to Excel/CSV Smart Service in Process Model

Hi,

I am working on Appian 17.4.

I am using Export Data Store Entity to Excel/CSV Smart Service to export the data in Excel sheet. If I check database, there are 40 records, but through the smart service, in Excel sheet, I am getting the message "No data available due to empty data source, applied filter/selection criteria, or fields visibility."

I am mentioning both the selected columns as well as filters using a!querySelection under Selection Input and a!queryLogicalExpression(operator:"AND", filters:a!queryFilter) under Filters Input.

Do we need to fetch the data separately in expression rule using a!queryEntity (in script task) before calling this smart service.

Please suggest.

Thanks and Regards