Issue:
Upon printing the Picking Tickets, the item lines did not show up in the print, even though they were added in the Advanced PDF Template.
Cause:
If the items on the sales order and transfer order have already been shipped, then we will not be able to print a Picking ticket anymore for that transaction. If we try to print a Picking ticket for the sales order or transfer order, it will just be blank, and the items will not show up since there are no items to pick anymore.
Also, if the items on the sales orders are drop ship items, then also Picking Tickets will not show the line items. This is because Drop ship items are designed not to appear in picking tickets because they do not get delivered to the warehouse.