Main customer of gold product was inter gold, aurora trading, main customer of silver product was DCC, NSJ and main customer chemical solution was ETA(Thailand)and PD&P Bangkok. Customer sent to order sale team trading section confirm price, Quantity input data in sap sale order draft trading section approved sale order sale/acc/Finance team check stock and delivery plan and e-mail to send sale order. It contains sufficient information for product realization process such as product specification/code/type, expected delivery date,price,payment condition in sap system.