As long as it involves changes in funds, it is called settlement. So there is transaction settlement and reconciliation. Before the transaction is settled, if it is to be delivered, it must also be delivered and settled. Settlement and delivery are carried out simultaneously and run through the delivery process. The beginning of delivery is liquidation in pairs, that is, settlement, and the end of delivery is marked by the transfer of the last 20% of the payment to the seller, and the transfer of funds is also settlement.