For purchases sent from SAP Ariba, the quickest and easiest way to submit invoices is via the Ariba Business Network. If you are not already signed up to this free network, please use the link that was sent with the Purchase Order. If you use the network, please do not send any further copies of invoices unless requested.
For all other invoices, these MUST include a valid Purchase Order number and be sent in machine readable PDF format to APInvoices@open.ac.uk.
IMPORTANT : Please do not send paper copies or email to any other OU e-mail address as this will delay payment.
ANY Invoice submitted WITHOUT a valid Purchase Order number maybe returned to the supplier unpaid.
Procurement Services
The Open University
PO Box 252
Walton Hall
Milton Keynes
MK7 6BP
General enquiries: FBS-OU-Suppliers@open.ac.uk