Answer: Set Up Standard Fixed Billing Items is used to enter fixed billing items for fixed-priced contracts and draw requests to be set up for the company. Set Up Standard Unit Billing Items is used to set up unit price billing items for each customer and to build a file of standard billing items for unit price contracts and draw requests. Each billing item represents a portion of the job for which the contractor may bill the owner according to its percentage of completion. It is not necessary to enter change orders as billing items on this screen.