Suppliers will invoice through Ariba network or manually send the invoice to UW. How will AP know when they receive an EI invoice?
If the order is sent manually to a supplier who is not Ariba Enabled, there are instructions on the EI that is sent to the supplier that instructs them to email a PDF of the invoice to epay@uw.edu and to reference the EI number somewhere on the invoice. When AP manually enters the invoice, they use the EI number to match to the PO so that that items are automatically added to the invoice. AP attached the PDF of the invoice to the one they enter into Aribe for document retention purposes.