I'm wondering how to set up the PayPal sandbox.

I set a sandbox up at PayPal but may not be configuring it right in Zen-Cart.

I was able to order a product and pay for it through PayPal (.01 cents) but I never received an email from PayPal sandbox email, or my other PayPal email telling me about the purchase.

I did get an email from PayPal about my purchase.

Can someone shed some light on the PayPal sandbox routine and the Zen-Cart settings?