Payment Zones provide the ability to define payment methods based on the address entered by the user during checkout. For example: you can configure your store to accept credit card, check and PO for customers in your "home country" and define allowable payment methods for your international customers to be credit card only.
To manage payment zones, navigate to the BuyNow module and select "Setup -> Payment Setup" from the admin menu:
Next, select the "Payment Zones
Click the "Add Payment Zone" button and the following screen will be displayed:
1. Enter you zone name
2. Select the zone country and region from the listbox
3. Save you payment zone
4. Click the "Payment Method" tab and the new zone will now be available for you to select with your payment method.