SAP SD (Sales and Distribution) is one of the significant modules of SAP ERP. It is used to store the customer and product data of an organization. SAP SD helps to manage the shipping, billing, selling and transportation of products and services of a company. The SAP Logistics module manages customer relationship starting from raising a quotation to sales order and billing of the product or service. This module is closely integrated with other modules like SAP Material Management and PP. This is an introductory tutorial that covers the basics of SAP SD and how to deal with its various modules and sub-modules.