How to include freight in an item's cost price
There is no feature in Swim which will calculate freight into cost price. The reason for this is that freight is a separate entity from the cost of the item itself. Although freight is an expense associated with the selling of the item, so is rent, electricity, wages etc. These items are considered separate entities from the cost price, and freight falls into the same category.
You can either add all these expenses separately onto an invoice specifically for expenses, or if you still wish to incorporate freight into the cost price of an item, it can be done manually by dividing the cost of the freight across the number of items on the invoice, and then adding that amount to the cost price of each item as a component. Just select the supplier and enter the supplier code as 'freight' and then enter the cost. You can also add packaging and marketing as components if you wish.