BUY.IU invoices begin with the characters "SI" (for sales invoice) and are generated using supplier-provided information. This page contains details about the various methods suppliers use to submit invoices.
If you need to follow up on an invoice that was submitted but is not in BUY.IU, contact Accounts Payable via their Support Form.
- Invoice Creation in BUY.IU: Provides details on the different methods suppliers use to submit invoices to IU.
- Searching for Supplier Invoices: Before contacting Accounts Payable to check the status of an invoice, search for it in BUY.IU.
- PO Flip - Supplier Instructions: These instructions are written from the supplier's perspective and demonstrate how to submit an invoice via their supplier portal.