Need Formated Search Query

Hi Experts,

I need formatted Search query to fetch Sales Order Customer Ref No. i.e NumAtCard field to Production Order User Defined Filed i.e U_CustRefNum when i select sales order Field in Production Order

some work around

SELECT  T0.NumAtCard From ORDR Where T0.DocNum = $[OWOR.OriginNum]

Thanks & Regards

Navanath