A Contract Purchase Order (CPO) is an official business document that outlines the terms and conditions of a purchase agreement between two parties. It is a legally binding document that serves as a record of the transaction and outlines the specific goods or services to be provided, the price, payment terms, delivery date, and other important details. The CPO is an important document that helps protect both parties involved in the transaction and ensures that all parties understand the terms of the agreement. It is important to review the CPO carefully to ensure that all details are accurate and that all parties are in agreement with the terms. A CPO should be signed by both parties before any goods or services are exchanged.