Suppliers

Frequently Asked Questions

Popular FAQs

Smartbuy Purchase Order FAQ

Yes, suppliers are required to submit e-invoices through Ariba. For more information, please refer to the link provided here.

All local suppliers are required to submit their legal profile in Ariba. For guidance, please refer to the user guide or video tutorial.

Please click here for more information

You need to expand the filtering function to view full list of invoices in Ariba. Refer to the “How to filter search function” for reference. If you are unable to view POs in Supplier Portal even though you have been receiving Ariba POs, this could be due to incorrect TRR linkages in Ariba. Supplier or NUS Requestors to email CPO team at cposuppliers@nus.edu.sg for clarification.

I9 – For local GST registered supplier
IE – Oversea or Non GST registered supplier

Suppliers should refer to the Ariba Invoice Creation User Guide to ensure the correct GST category and type are selected. For further information, please consult the guide.

For more information, click here.

Suppliers may contact the requestor to verify the status of goods receipts or reach out to the NUS Accounts Payable Team at ofnap@nus.edu.sg for further clarification. If a supplier receives an email notification from Ariba indicating that an e-invoice has been rejected, they may consult the list of common invoice rejection error messages provided in this link for guidance on the appropriate follow-up actions.

For more information, click here.

Ariba only allows e-invoice submission based on PO contracted amount. If there are additional cost (not catered in PO) to be invoiced, Supplier shall work with NUS requestor on alternate solutions.

Supplier can email the requestor to confirm good receipt is completed before proceeding to submit invoice in Ariba.

Yes, supplier is able to submit invoice in Ariba for partial Goods Receipt (GR).

Scenario #1:

Partial GR completed: 5 out of 10 quantity.
Supplier may submit single invoice to bill 5 quantity.

Scenario #2:

Partial GR completed: 5 out of 10 quantity
Supplier may submit invoices of 2 quantity and 3 quantity separately.

Scenario #3:

Partial GR completed: 5 out of 10 quantity
Supplier will not be able to submit invoice of 6 quantity.

For Ariba invoices, 30 days payment terms is based on the Ariba invoice submission date (i.e. Ariba invoice date). Ariba allows Supplier to backdate the Ariba invoice date up to 7 days from the Ariba invoice date. (E.g. If Supplier submit invoice in Ariba on 8 Feb, they can only select Ariba invoice date backdated up to 1 Feb)

For Supplier to Add/Update Bank Details

Please click here and tick accept, there after please complete form Z and submit the form together with bank supporting documents to OFNVEN@NUS.EDU.SG

For suppliers with multiple currencies bank accounts maintained in NUS Supplier records, upon Ariba invoice submission, please email to NUS AP at ofnap@nus.edu.sg with keyword “Enquiry” indicated in the email subject title to check/add/amend the correct bank account for payment processing.

Note: Please indicate the PO number/Invoice number in your request.

Please refer here for the relevant contact points.

Click here to resolve the password or username issue.

Click here to login Ariba portal.

Non Purchase Order FAQ

Supplier must only submit 1 invoice per email to NUS mailbox (ofnap@nus.edu.sg) with email subject header.

NPO Invoice Sample:

For supplier required to submit NPO invoice, please key in the keyword “Non-PO Invoice: “NPO” or “Non-PO” in the email subject header.

Reminder: Please do not to submit same invoice set to NUS requestor to avoid duplicate invoice processed for payment.

Ensure that Invoice has the following details are in order:

  1. National University of Singapore
  2. NUS’ Department Name (e.g. “Department of Chinese Studies”)
  3. Requestor’s Name (e.g. Asst Prof John Tan)
  4. Requestor’s email address (e.g. johntan@nus.edu.sg)

No, Ariba invoices should be submitted under Ariba network.
For more information, please click here.

As a new supplier, please liaise with the NUS requestor to ensure all the relevant details for supplier creation are submitted completely before the invoice billing.

NUS general payment term should be 30 days (PT30) unless specific agreement are made.

If there are any issues regarding payment status of the invoice, supplier can submit an email query to ofnap@nus.edu.sg and input keyword AP-Related Queries: “Query”, “Queries” or “Enquiry” in email subject title.

Alternatively, supplier can contact general helpdesk hotline (65) 6516 8238 and then press 1 for AP.

SESAMi PO Invoices:
SESAMi PO invoices are identified by PO numbers starting with “5” or “7”. These invoices should be submitted to the AP mailbox. Kindly ensure that the email subject line includes the keyword “PO Invoice (SESAMi): NUS PO” or “NUS-PO”.

Ariba PO Invoices:
Ariba PO invoices are identified by PO numbers starting with “8”. Please note that these invoices should not be submitted to the AP mailbox.

Please send an email to OFN AP mailbox (ofnap@nus.edu.sg).

Supplier can contact the general helpdesk hotline (65) 6516 8238 and then press 1 for AP.

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