This document provides an overview of SAP COFI (Controlling and Finance) modules for beginners. It discusses how the CO (Controlling) and FI (Finance) modules can help with cost and financial accounting practices to improve management decision making. The CO module includes cost element accounting, cost center accounting, internal orders, activity-based costing, product cost controlling, and profit center accounting. It also discusses how these sub-modules integrate with other SAP modules like FI, MM, PP, and PM. Transaction codes for creating cost elements and cost centers are provided as examples.