it is included to a response in the thread
it is your site’s URL and if you have WP in a different directory, then add the directory
example: site.com or site.com/wp/
update – found the answer on your original help page
no, didn’t know to do that.
First, your referenced page is out of date. Here’s the info from PayPal – had to do some searching to find that.
Second, what is the listener’s URL?
