The document outlines the steps for processing third party sales orders in SAP SD. It involves:
1) Creating a sales order for a third party item which automatically generates a purchase requisition.
2) Creating a purchase order from the purchase requisition to the vendor.
3) The vendor supplies the goods to the customer and issues an invoice to the business.
4) The business verifies the invoice receipt and issues a billing document to the customer.
5) The customer makes payment to the business, who then makes outgoing payment to the vendor.