About Amazon Pay for WooCommerce
The Amazon Pay feature for WooCommerce enables a payments module that allows customers to check out on your site using payment methods from their Amazon.com account.
To enable this feature, you need to create an Amazon Pay merchant account. The Amazon Pay account is where you find the access keys that you need to configure Amazon Pay, and is also where you configure your deposit account so that you can receive payments, and where you can view reports. Register for your Amazon Pay account at https://pay.amazon.com/signup.
More information about Amazon Pay, including pricing, can be found at https://pay.amazon.com/sp/woocommerce.
Note: Amazon Pay is not the same as Checkout by Amazon (CBA) or Amazon Flexible Payment Service (FPS). If you have accounts with either of these older services, you still need to register for a new Amazon Pay merchant account to use Amazon Pay.