Dear Experts. I had stuck with an requirement. Please help me in this requirement. I have created two new Voucher Type "Inquiry" and "Quotation" under Sales Order and designed it as per requirements. I want Ref. No. of "Inquiry" voucher type in "Quotation" voucher type, which I have done already but what i can not do is --> after saving "Quotation" voucher type it is showing "Inquiry" voucher type's Ref. No. again in "Quotation" voucher type for pending Inquiry list. I tried solve out but could not do it. As I know I have to modify "Order" object (as "Ledger Sales Orders" will fetch data from it) and set closing balance and closing value to zero as per selected inquiry and item. I studied action "Modify Object" but it asks for primary key only then how can I modify object using combination of ref no and item name as I have to show pending inquiry list in quotation voucher type.