Per Shopify limitations, "Customers can't use accelerated checkouts or local payment methods such as Amazon Pay, Google Pay, Klarna, mollie iDEAL, and Sofort, to purchase subscriptions."
We're currently up to date with all Shopify Subscription API approved gateways listed in Shopify's subscription requirements. These include:
Shopify limitations, "Customers can't use accelerated checkouts or local payment methods such as Amazon Pay, Google Pay, Klarna, mollie iDEAL, and Sofort, to purchase subscriptions . However, customers can use Shop Pay, Apple Pay, and PayPal Express at some stores."
If Shopify enables support for BNPL payment options in the future, Smartrr will also be able to support these payment methods for subscriptions.