PayPal Express Checkout – is a fast, easy and secure way for buyers to pay with PayPal.
Express Checkout eliminates one of the major causes of checkout abandonment by giving
buyers all the transaction details at once, including order details, shipping options,
insurance choices, and tax totals.

Additional:

• Very simple in settings
• Immediate payment
• You can use your own IPN listener or built-in one
• Notifications about errors
• You can specify Business Title that will be shown on PayPal page instead of your name

• You can specify PayPal Landing Page (Credit Card or PayPal account)
• Detailed order with list of products or one full amount for “Order #”
• IPN Log – all IPN messages will be logged if you use built-in IPN listener
• Test Mode (Sandbox)

PayPal action: Sale
In order to use built-in IPN listener leave IPN Listener field empty.
Requires PHP 5, CURL.

Author: Alexey