How Standard Checkout works
The Standard Checkout flow consists of 6 steps:
1. After selecting products to purchase, your customer chooses to pay with PayPal. Customers can also choose to use your existing checkout for credit card payments.
2. Your customer is transferred to PayPal's secure site (HTML redirect).
3. Your customer logs in to their account and reviews their shipping and billing information. Your customer clicks Pay to make their payment, which is processed instantly.
4. Your customer reviews their payment confirmation at PayPal.
5. Your customer is automatically redirected to your site (HTML redirect).
6. Your customer arrives at the order confirmation screen on your website. You are notified of a successful payment via email, Instant Payment Notification, or Payment Data Transfer.