This document provides an overview of how financial activities from other SAP modules are integrated with the SAP FI (Financials) module. It discusses the integration of FI with Materials Management (MM), Sales and Distribution (SD), and Controlling (CO). For MM, it describes the procure to pay process including master data, purchase orders, goods movement, and invoice verification. For SD, it discusses sales order processing, revenue account determination, and billing/invoicing. It also provides an overview of transaction types between FI and CO for accounting and cost allocation.