How to register on SY? (guest) What should I do if I lost my invitation?

How can I update my user account information? How do I change the email address associated with my account? How do I change my account photo? Can I configure the notification emails I receive ? How to change the portal language? Can I save my search criteria for future use? What should I do if my user account is locked? Why is my password not allowed ? Why do I need to change my password? I have forgotten or lost my password I have forgotten or lost my username I asked for my username to be resent but I did not receive the expected email I asked to reset my password but I did not receive the corresponding email. How can I recover my username or password? How can I change my password? How do I delete my SY account? Can I stop using SY?