SAP® Sales & Distribution (SD) module looks after the processes from order to delivery of a product. It takes care of Sales Orders, Consignments, Credit & Debit Memo Requests, Back Orders, and Contracts. It is one of the important modules introduced by SAP® and works closely in relation to other modules for an efficient work process. SAP® SD works on various components like Master Data, Shipping, Credit Management, Billing, Transportation, and Sales Support.