The sales order, sometimes abbreviated as SO, is an order issued by a business or sole trader to a customer. A sales order may be for products and/or services. Given the wide variety of businesses, this means that the orders can be fulfilled in several ways. Broadly, the fulfillment modes, based on the relationship between the order receipt and production, are as follows:
A sales order is an internal document of the company, meaning it is generated by the company itself. A sales order should record the customer's originating purchase order which is an external document. Rather than using the customer's purchase order document, an internal sales order form allows the internal audit control of completeness to be monitored. A sequential sales order number may be used by the company for its sales order documents. The customer's PO is the originating document which triggers the creation of the sales order. A sales order, being an internal document, can therefore contain many customer purchase orders under it. In a manufacturing environment, a sales order can be converted into a work order to show that work is about to begin to manufacture, build or engineer the products the customer wants.
Many sales orders are no longer paper-based, but rather transmitted electronically over a corporate Intranet. These sales orders may be communicated across different enterprise business applications. The automated sales and purchase order process enables customers to place orders 24/7, even when offices are closed.
The steps involved in fulfilling the demands made in a sales order make up the order fulfillment process.