What is the difference between PayPal Payflow Payment Gateway …
https://www.paypal.com/us/cshelp/article/what-is-the-difference-between-paypal-payflow-payment-gateway-options-help347
WEBPayPal has 2 gateway options that give you different levels of customization for your online checkout pages. Payflow Link is cost-efficient, PCI-compliant, and works with your existing merchant account. At checkout, your customers enter their payment details on a secure, PCI-compliant template hosted by PayPal.
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