I'm trying to test my form with PayPal and I keep getting an error.

I'm trying to test my form with PayPal and I keep getting an error. I've created Sandbox credentials for PayPal and put that as the payment email address on PayPal Integration. Any ideas on what's wrong?

I checked your email address but I am unable to find any account. To which form is your issue related to? Please provide us a form URL.

Where to Find My Form URL?

Also, please tell us which error message are you getting. You can also provide us a screenshot of the error message.