Sometimes you want to build all your costs into an Items cost of sale value. To do this an Inventory Adjustment transaction is used to build an Item from all the components and related costs. Using Items > Inventory Adjustment > +Add you can create a transaction which converts the various costs into a single saleable Combo Item. The same process can be automated by going to the Combo Item and using the Build option.
Example: I have a Box and some Freight and Insurance I want worked into my COGS.
|-10||10.00||100.00||ABC Widget (pre costs)|
|-1||15.00||15.00||Insurance on ABC|