CARTwebERP is a shopping cart Joomla! component that integrates with webERP. The terms, credit limits, account status, pricing, product pictures, product pdf brochures, customer records, sales tax, and freight tables entered in webERP are used in CARTwebERP to provide your customer the easiest way to shop and place orders. Once the order is placed, you have an order on your accounting system.  Your customer may use a payment gateway like PayPal or charge the sale to accounts receivable.  If they pay with credit card or paypal, then an entry is made in webERP for the payment to apply against the invoice when it is created.  Nothing to synchronize or import.  An awesome front end with the best back end possible!