How to connect paypal website payments standard to sandbox environment

[alimtlai]

There is an option in "paypal express checkout" to connect to paypal sandbox environment. But there is no such option in "paypal website payments standard". Do I have to test it in real live environment? What other means? Please help. My site can't get into operational before this can be tested. Many thanks.

[chucksssss]

I've heard many people here say that the best test is a live test. And, with PayPal, you can always refund the transaction, meaning it costs nothing to do the tests.
I myself agree that testing "live" is best, since that's what my customers are going to do -- so, why don't I focus on testing exactly what they'll do?

PayPal lets you have 2 accounts: one business, and one personal. If you can't get a 2nd account set up, then get a friend who has one to do the tests for you, and be sure to refund when you're done. If you don't have a friend, pick a customer instead, and maybe give them a coupon to use against a real purchase later.

[DrByte]

There are instructions here on setting things up, testing it, and even troubleshooting it: http://www.zen-cart.com/wiki/index.php/PayPal