Checkout By Amazon
Some shopping carts, like Magento, create the orders on their own website. Others, like ZenCart, rely on the order created by Checkout by Amazon and do not create the order on their websites. The orders must then be imported from Checkout by Amazon, so enable the client setting Allow to Create Amazon Checkout Orders. To prevent duplication of orders from Magento, or similar shopping carts, that are processed through Checkout By Amazon, the client setting should be disabled.