In submitting an invoice, suppliers must ensure that: The invoice has reasonable clarity (and preferably not handwritten) The invoice number and purchase order number must be clearly stated on the invoice The vendor’s name on the invoice must match the vendor’s name on the Purchase Order The invoice must provide a description of the goods or services provided. The invoice quantity and price must match that specified on the Purchase Order The bank details stated on the invoice must match those held in the supplier database of the company- contact the supply Chain department to confirm or amend the bank details