To setup PayPal as payment method please login to your business PayPal account and navigate to Profile  Profile and settings  My selling tools  Website preferences

Step 1. Turn On Auto Return

Step 2. Setup Return URL (Your Checkout Page URL)

Step 3. Turn On Payment Data Transfer

Step 4. Copy your PTD Identity Token

Please Note: PayPal payment method will work only in a live environment. The PayPal account must be a business account. PayPal currency must be the same with the account currency. PayPal requires an SSL Certificate to be installed on your server. Your website must use https:// rather than http://