Open the 
Sales Order
window. Browse to an order you want
to ship in more than one shipment.
In the Posting Date field, enter the posting date.
The following fields on the sales order lines are especially important for partial shipments:
In a partial shipment, an order is shipped in more than one shipment. For example, from an order for 100 units, you ship 40 units immediately and 60 units later. In the program, there are no limits on the number of shipments that can be made for an order.
Open the Sales Order
window. Browse to an order you want
to ship in more than one shipment.
In the Posting Date field, enter the posting date.
The following fields on the sales order lines are especially important for partial shipments:
Click the Qty. to Ship field, and then enter the quantity you want to ship in the first place.
The maximum quantity you can enter in this field is the number of units that have not yet been shipped.
Click Posting, Post. (If you want to print the shipment at the same time as you post, click Posting, Post and Print instead.)
Select Ship, and then click OK.
Posting Partial Sales Invoices