This document provides guidance on using Oracle Services Procurement to process the procurement of complex work and contingent workers. It discusses the licenses, profile options, and concurrent programs used in Oracle Services Procurement. It also provides overviews and steps for setting up Oracle Purchasing, Approvals Management, E-Business Tax, Procurement Contracts, iProcurement, Human Resources, Time and Labor, Internet Expenses, and Projects to process the procurement of complex work and contingent workers. Finally, it describes the key features and steps for processing complex work procurement and contingent worker procurement within Oracle Services Procurement.