What is going on with the business sandbox accounts?? There is absolutely no way to set the auto return URL and test Payment Data Transfer because you have a broken link inside of the Website Payments Page -> Website Preferences. The link is supposed to go to https://www.sandbox.paypal.com/businessmanage/preferences/website where you can actually setup your return url and also turn on PDT for testing. Unfortunately this just continuously redirects to https://www.sandbox.paypal.com/businessmanage/legacy/loginSecurity. This is a pretty big issue and it is mind blowing that no one has even brought this up.
There is an old article where a user was having the issue and the solution was to go the following url https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_profile-website-payments but unfortunately that redirects to the loginsecurity page as well. This is a major blocker and not allowing us to test PDT before turning it live on our website. Please fix this problem as it is a major burden but apparently I'm the only one on the planet that has brought this up within the last year.
