Checkout By Amazon is a payment processing and order management service by Amazon that can be used to process payments for your website order. When a customer selects the Checkout by Amazon option to make a payment, they are redirected to the Checkout by Amazon site to make the payment. An order is generated on the Checkout by Amazon site.
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.
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