MerchantSuite Payment - Magento 2 connects your Magento store to MerchantSuite gateway to easily accept credit card payments. The extension included 2 options: MerchantSuite (2-Party payment): The merchant needs to be PCI DSS compliant, it allows your customer to purchase directly from your site using Credit Cards. MerchantSuite (3-Party Redirect payment): a non-PCI compliant merchant can accept, it will be redirected to the MerchantSuite Gateway website for credit card entry and then redirect back to your magento website.