Thank you Nask for you reply. In fact it's really the Chinese market's bad rule.
To send less or split the delivery is impossible to my client as no one knows how the customer confirm the stocks. Any kind of delivery may need to be confirmed partially.
As you know if there is some other way to deal with the stock in transit but POD. I mean the way to issue the stock in transit without the limitation of the deliveries. Actually we have apply the Material Ledger which is based on the movement of the stock. We should make the material movemet for the stock in transit to ensure the difference of the material to be distributed excatly.