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.