An accounting information system (AIS) must include certain source documents in order to control purchasing and accounts payable. For a manufacturing organization, the best set of documents should include:
- purchase requisitions, purchase orders, inventory reports of goods needed, and vendor invoices.
- purchase orders, receiving reports, and inventory reports of goods needed.
- purchase orders, receiving reports, and vendor invoices.
- purchase requisitions, purchase orders, receiving reports, and vendor invoices.