If your department has submitted an invoice for processing against a purchase order, there are many things that may keep it from being processed in a timely manner.

• The PO number on the invoice is either missing or incorrect.
• The PO balance is insufficient and a change order is required for overages.
• Invoice approval form has incorrect information.
• PO description does not match department request.
• The payment is from a restricted fund for professional services and the approval is missing a signature by the Principle Investigator
• The department has not received the services or goods (we cannot pre-pay in advance unless Procurement has requested it on the P.O.)
• A specific email has been sent to the department for review of the invoice.