This document summarizes the key activities and controls in the expenditure cycle, which involves ordering, receiving, and paying for goods and services. It describes the basic steps of ordering goods through a purchase requisition and purchase order, receiving goods and verifying the order, and approving the supplier invoice through matching it to supporting documents before payment. The document also identifies common threats at each step like purchasing unnecessary items, payment errors, and theft. It provides examples of control procedures to address these threats, such as segregating duties, taking inventory counts, and verifying orders against invoices.