Supplier Invoice Submission Guide

Vendor Instructions

Preferred Method: Submit Invoices Through Unimarket (PO Flip)
If you are a registered supplier in Unimarket, please submit invoices directly through PO Flip. This is the fastest and most efficient way to ensure timely processing and payment.

Before submitting your invoice, verify your Remit-To Address in Unimarket. PO Flip invoices are processed through a touchless workflow, and payment will be issued based on the remittance information selected in your supplier profile if your payment method is Check.

PO Flip Resources

Standard Orders: PO Flip Training Video
Blanket Orders: Blanket Order Instructions

Alternative Method

Please email [email protected] for more information.

Purchase Order (PO) Number Required

Include the PO number on the invoice
Include the PO number on the email subject line

International Suppliers

To receive payment, international suppliers must log into Unimarket and provide:

Banking Instructions completed
A current bank letter from your financial institution verifying your banking information