The sales order is the central document in Sales and Distribution. A sales order can be created on the basis of preceding inquiries and quotations. During order entry, you can record information about the customer and the products or services in the document. You also perform various checks, such as the availability check and the credit limit check. The information entered in the sales order is transferred to subsequent documents, which are used to further process the business transaction. The delivery document is the basis for the shipping activities. When shipping has been completed, the delivered goods and/or the services rendered are invoiced during the billing process. The billing data are then forwarded automatically to Financial Accounting and Profitability Analysis.