Use GW iBuy+ Invoice to submit invoices for payment. Use this online submission form only for grant related DCFs and endowment payments. Please place the word "DCF" or "ENDOW" in the first position of the invoice number field, followed by the invoice number to enable us to route correctly. If you don't receive a ticket number, AP has not received the request. Images should be scanned at 300dpi. Files larger than 8MB will need to be sent via email to [email protected].