Requisitions are invoices against Contracts and, therefore, are revenue records. Requisitions act in a series. After the first requisition is saved for a contract the next is generated by clicking the Create Next button. When you create the first requisition in the series you are given the choice of copying into it the schedule of values lines from the original contract; you are not required to do so. You can link Contract COs to the requisition and use Timesheets and Production records to update % complete. You can also use the req. codes feature to tag certain costs in PMWeb and automatically pull them into a requisition so that they can serve as the basis of a cost plus billing scenario.