Dear, Do you mean the back to back order? " 背靠背订单 " if your meaning is Back to Back Order in sale process. This mean, the customer will placed an sales order to your company, and your company need to fullment of this order, normally you will find the the supplier manfacturing for your or the supplier who already have stock in hand. Customer Order QTY 100 TOY CAR and you find the corresponing suppler to ship the same qty of 100 TOY CAR to your customer. This type of transaction is very common on trading operation. In some of the ERP system, you can well define the specific customer's need on items to one of your specific vendor who have the supply of the item. You only need to define both side, then when you selection the " Back to Back Order " type and only need to input the sales order/customer order. The supplier side will be completed by ERP system and issue purchase order to the supplier. I hope that will help you understand. May be I am wrong. FRANKIE WONG |