1) log into paypal regularly
2) look for “developers: (bottom of page)
About Help Contact Fees Security Developers Partners
3) in developers console click “dashboard”
4) click “accounts”
5) notice email addresses:
mark-facilitator@edwardsmark.com mark-buyer@edwardsmark.com6) optionally change password
7) log into sandbox.paypal.com using one of the email addresses from the previous step