By default, INFORRMS shows line items, product units, and extended prices on invoices. But by using print codes in the order, you can keep any or all of that information from being printed on the invoice copy you send to a customer. Conversely, INFORRMS does not show, by default, any sub-assembly tables on order/invoices. However, you can switch that printing on/off as needed.
Read the full INFOTIP.