Suppliers

To facilitate the seamless processing of Non-PO invoices, please send your invoices to our central mailbox at ofnap@nus.edu.sg.

Please specify the keyword on the email subject header, for easy identification, as follows:

• Non-PO Invoice: “NPO” or “Non-PO”
• PO Invoice (SESAMi): “NUS PO” or “NUS-PO”
• AP-Related Queries: “Query”, “Queries” or “Enquiry”

Please continue to ensure that the invoices issued to NUS include the (a) Bill-To Party: National University of Singapore, (b) NUS’ Department Name, (c) Requestor’s Name and (d) Requestor’s email address for easy tracking.

Do note that the above changes are not applicable to Smartbuy e-invoice submission, and the invoices submitted via the satellite systems, i.e., Library’s Sierra System.