Your ecommerce store constantly communicates with your Google Checkout merchant center
Not all shopping carts feature the same level of integration with Google Checkout. ProductCart features what Google calls "level 2" integration with Google Checkout (advanced users: see this Google Checkout FAQ on integration levels).
This means that - after an order is placed using Google Checkout - your ProductCart-powered ecommerce store and your Google Checkout merchant center are constantly communicating to keep each other updated.

- Order management integration
You can manage all orders in your ProductCart Control Panel, including those paid through Google Checkout.
- Always synchronized
Regardless of whether your process an order in ProductCart or in the Google Checkout merchant center, the other system is kept up-to-date.
- XML API
We used the robust XML API for the integration
- Proven record
ProductCart was one of the first shopping carts to be integrated with Google Checkout. Since then, many online storefronts powered by our shopping carts have processed thousands of orders using Google Checkout, including our own ecommerce software store (see it in action there: just add something to the cart).
ProductCart + Google Checkout | Other Google services integrated into ProductCart