Book excerpt: SAP is the world leader in Enterprise Resource Planning (ERP) software; of the software?s modules, the FI (Finance) and CO (Controlling) are by far the most popular and are widely implemented. This book has no competition?it is the only book on the market on how to configure and implement SAP?s FI and CO modules to maximize functionality and features hands-on, step-by-step instructions and real-world examples that provide immediate and practical solutions. Updated for SAP?s ECC 6.0, the book covers FI enterprise structure, general ledger, substitutions and validations, automatic account assignments, accounts payable and receivable, asset accounting, accrual engine, closing entries, credit management, lockbox, CO enterprise structure, profitability analysis (CO-PA), and more.