Delivery Issue

Hi,

" Delivery has to create based on the multiple sales orders with partial quantity ( Customer is Same )"

For Example Customer Number is 1234 , Material are x-1234,M-1234,P-1234, M-3456

Sales Order : 100

10 x-1234 100 Qty

20 M-1234 200 Qty

Sales Order :101

10 P-1234 300 Qty

20 M-3456 500 Qty

Client requirement is at the time of Delivery he has to pick the material partially from each sales order ( not full any sales order )

Is it possible is in SAP if Yes can any one Guide me how to MAP into SAP and what are the settings are required to solve above issue.