Hi, I'm planning to build a private app that is using Shopify Subscription APIs. I see an article here and this is exactly what I need for my app:
Is this subscription API restricted to only use "Shopify Payment" provider, or I can use any Direct Payment provider/gateway from this list
as for example Braintree or Quick Books?
The subscriptions API requires the merchant to use Shopify Payments as the payment provider (link). Note also that this API is currently only available to custom or public app types