Transfer Cost From Order to PO

How do I set up an inventory item (like freight) so that the cost on the Order will be carried over to the cost on the Purchase Order?

This can be a frustrating scenario when an incorrect cost keeps popping into the PO after you convert from an order. The answer is to set the Standard Cost to $0.00 on the inventory item and make sure there are no entries for the vendor in the Vendor tab.

This shows the standard cost set to zero

This picture shows no entries for Vendor Cost. When this item is converted from an Order to a PO, it will bring the cost from the Order.