I have been looking at the following article: https://docs.mollie.com/docs/shopify-set-up-subscriptions regarding setting-up subscriptions which allows Firmhouse & Chargebee, but is it possible to use this integration without?
It seems that these integrations only rename the payment method, and that Mollie changes the SEPA mandate to recurring, so that we can do everything natively in the Shopify checkout.
Mollie Documentation
Understand subscriptions Explore how Mollie supports recurring payments for regular billing using subscriptions directly through Shopify. 📘 Tip: Minimize chargeback risk by clearly communicating the charge amount and frequency to your customers. Ensure customer awareness by sending advance notifica...