How does Amazon Pay work with Shopify?
Shopify uses the Amazon Pay API for easy integration. Once you create your Amazon Pay account, you can activate Amazon Pay with a single click.
Where are my Amazon Payments?
Your Amazon Pay orders are sent to your Amazon Pay account. They aren’t included in your payouts from Shopify.
Are alternate payment methods available on Shopify?
Alternative payment methods are not available to Shopify merchants at this time.