You can use the picking list to plan issue of goods.

If in the picking list are entries like the following two:

You are issuing goods for this customer with the deliver-by date 7.5.2007, the program will when adding to the packing slip by default select only the first line (8 pieces to deliver from the May 7, 2007 forward):

From including the December 10, 2007 also the second line will by default become selected.