Configuring third-party payment providers
If you're not using Shopify Payments and you want to accept credit cards, then you can choose from over 100 credit card payment providers for your Shopify store.
You can activate or change a payment provider from the Payments page of your Shopify admin. Depending on the requirements of the payment provider, you might be required to submit and verify your bank account information with them so that your store can complete transactions. Contact your payment provider to confirm whether or not you can accept payments from your customers before providing your bank account information.
On this page
Activate a credit card payment provider
You can have only one credit card payment provider activated at a time. If you already have a provider activated, then you can change your credit card payment provider.
Steps:
Change your credit card payment provider
Steps:
The payment provider that you selected will now be active on your store.
When you change your payment provider, your previous provider will be removed from your payment settings, but is available if you need it for cases such as order returns. If you want to process returns for orders placed using your previous payment provider, then don't remove your account credentials from the Payments page of your Shopify admin before switching providers.
Add a payment provider using ActiveMerchant
We're no longer accepting new payment providers into Shopify using ActiveMerchant. The GitHub project is still free and available to developers who want to use it with other projects.