how to enable Instant Payment Notification Preferences of sandbox account?

Question

in two years ago, i remember how to add how to add the notify url

1. Click Profile on the My Account tab.
2. Click Instant Payment Notification Preferences

Answer 1

1. If you don't already have a developer account, go to https://developer.paypal.com/ to get a business account.

2. Sign in under the Business account

3. More>settings>my selling tools>instant payment notifications---update>choose IPN settings