Hello, is this thing on? Many of us who have, or are in the process of launching, e-commerce sites have wondered about this at one time or another. The most common way of finding out is to make a test purchase of $1 or less, to see if everything works. But there is an alternative, that costs nothing to use; the PayPal Sandbox. With the sandbox you can simulate PayPal transactions, as many times as you want, without incurring any processing fees. Not only can you simulate actual purchases, you can test drive your e-commerce site from the purchaser’s point of view. You can even simulate how your site will react to purchasers with varying levels of PayPal funding and verification.