Each guardian needs their own sports engine account.
Additional guardians can create a sports engine account here:
Players should only be registered under one primary account and the additional guardians should be invited through the player's profile under household in your account. Please do not register players twice as only one profile will be rostered.
If when accepting the guardian invite from email and the link does not work. The invited guardian should be able to log into their MySE on a browser and accept the guardian invite from the notification icon (shows as a bell next to their initials). The link below will get them to their MySE as well if needed: https://my.sportngin.com/user