Topic: Paypal testing

Go to http://www.sandbox.paypal.com and log in.

This is what I did.

1. Create a user in my store's database that I use for all my sandbox transactions (for testing). Define
the test user's email address to be the same as your sandbox user's email address. (makes it easy)

2. Make sure my PayPal module is set to TEST and not LIVE.

3. Create a Sandbox business account on the PayPal developer site and launch it.

4. Configure your autoreturn in the Sandbox business account (profiles).

5. Create a Sandbox user account on the PayPal developer site.

6. Log my sandbox user into the store and place an order.

I am not familiar with your specific config. but in a nut shell that is all I did. Most importantly, just make sure that you have both a user and business sandbox account, enable your paypal mod to be in test mode with your business sandbox email address in the config.,

Also, make sure you verify your sandbox business and user accounts.

Hope this will work.