It is one of the payment services provided by Shopify. When using Shopify to make a purchase, you can save your credit card details when you register your account information. By doing so, the next time you make a purchase you can complete the payment process by simply entering the six-digit code (SMS authentication) sent to your email address and mobile phone number. How to register 1. At the time of purchase, check the "Save my information for the next purchase" box and enter your mobile phone number. (*) Shop Pay cannot be used without SMS authentication. 2. Your account information will be saved by simply completing the payment. 3. Upon receiving an email from Shop Pay, complete the email address verification process by clicking on the "Confirm email address" button. How to edit/delete registered information You can change or delete your registered information from the Shop Pay login screen (external site). (*) You need a different account from our online store’s My Account.