If you are a WHI-integrated distributor, the answer is YES. You will need to activate B2B in your advanced store settings, and also activate payments via Open Accounts in your payment tab.
If b2b, they are assumed to be a net account that does not pay at checkout. They will have the ability to enter a PO number and a comment, and with a single click the order will be checked-out and sent to your DMS if your automatic order fulfillment is turned on. Additionally, the customer record in the b2c site must have the Nexpart User ID in the 'accountnum' field and the Nexpart password in the 'custpass' field.
