This document describes the procure-to-pay (P2P) and order-to-cash (O2C) cycles in Oracle applications. For P2P, it outlines the key steps of purchase requisition, purchase order, goods receipt, entering invoices, and payment. For O2C, it outlines the key steps of sales order, shipping, invoice creation, receipt, and reconciliation. It also provides details on the journals entries for transactions in each cycle.