Source documents are used to collect data about business activities. Match each of the documents in the column on the left with the most appropriate business activity in the column on the right. Purchase Requisition. Sales Order Sales Invoice [Choose] Collect data from customer regarding a sale. Order goods and services from a vendor. Lists items to select from a warehouse. Request that the purchasing department order goods or services from a vendor. Prepared and sent to the supplier when damaged or inferior goods are returned. Bill the customer for an order. Picking Ticket [Choose ] Debit Memo [Choose ] Purchase Order [Choose ]