Sales and Distribution (SD) is an ERP Central Component (ECC) core functional module that helps organizations store and manage customer and product-related data. It streamlines the entire sales process, from order creation to delivery and billing. SAP SD integrates with other modules like MM (Materials Management), FI (Financial Accounting), and PP (Production Planning) to ensure seamless business operations. It automates pricing, invoicing, and credit management, improving efficiency and customer satisfaction. With real-time data tracking, SAP SD enhances decision-making, optimizes sales performance, and ensures accurate order fulfillment, making it a vital component for businesses managing large-scale sales and distribution networks.