Yes, you can use your own payment process on Shopify. Shopify supports a variety of payment processors, including PayPal, Affirm, and Shopify Payments. For a full list of Shopify’s supported payment processors, check out https://www.shopify.com/payment-gateways

Shopify supports a wide range of third-party payment processors, including PayPal, Stripe, Amazon Pay, Authorize.net, and many others. By using a third-party payment processor, merchants can offer their customers more payment options and avoid the transaction fees associated with Shopify Payments.

For developers, if you want to use your own payment processor, you will need to integrate it with Shopify. This can be done by using a Shopify API or by using a third-party integration service.

To use a third-party payment processor, merchants need to set up a merchant account with the payment processor they want to use and then integrate it into their Shopify store. This can be done through Shopify’s Payment settings or by installing a payment gateway app from the Shopify App Store. It is recommended to research the payment processor and their fees and integration requirements before selecting one to use with Shopify

Best alternatives to the Shopify payment processor

The best alternative most businesses use for Shopify outside of the default payment method is Paypal. Paypal is not a perfect competitor for Shopify payments as returns and return approval processes are up to Paypal to approve. But if you are looking for a good alternative, PayPal will do the trick!