Can we use a purchase order (PO)? Yes. You can nominate whether your business requires a purchase order as part of the setup. By Support Net-CABS|2026-03-31T14:28:39+11:0031/03/2026|Billing & Payments| Share This Story, Choose Your Platform! FacebookWhatsAppTelegramEmail About the Author: Support Net-CABS Oiii Support Team - a group of people who are excited about Oiii and providing excellence in customer service