A PO or Purchase Order Number may be required by your internal accounting department prior to placing product orders. If your company requires a PO # prior to you placing an order, please enter that number into the PO field. If your company does not require a PO number, please enter your first name or order date into the PO field. Because we have so many customers who require a PO, it is a required field in our web account creation form. Entering the correct information into the form helps us process your order more quickly and efficiently.