Shopify Payments is a payments platform powered by the payment processor Stripe. This is the same payment processor used by Paythen. However, because of limitations with Shopify Payments, there is no way for you to use your Shopify Payments account with Paythen. To use Paythen, you’ll need to create a Stripe account directly at stripe.com and then connect that to Paythen. Here are instructions on how to create and connect your Paythen and Stripe accounts.
This Stripe account is fully owned by you so isn’t limited to being used with Paythen – you can use this with any other tool and on any platform – including Shopify.