Recording Sales of inventory stock to various online customers

What is the best way to record online sales?

We have previously had inventory stock that we have sold only to regular customers with accounts and a Customer Card in MYOB. We have now included an online store, also an eBay store. Therefore we have various customers now and we need to work out what will be the best way to record sales of our stock in MYOB.

It doesn't seem to make sense to create a Customer Card in MYOB for every individual person purchasing from our web store and processing an invoice.

What do you suggest is the best way to record the movement of our inventory and matching the payments in the Bank Feed?