Add Freight and Duty Costs to Purchase Invoices

Adding freight and delivery charges to purchase invoices helps to provide better margin information. The additional charges are added proportionally to the items in the purchase invoice. 

1. Open the unposted Purchase Invoice.
   
2. Enter Edit mode.
   
3. Add the Freight and Duty costs for the shipment into the respective boxes.
   
4. Post and save the Purchase Invoice.
   
5. The Freight and Duty costs will be amortised across the shipment and added to the stock items as overheads.