If you've manually added players or staff to the team you will need to invite them to become a member of the team's web page so they can receive email communications, RSVP to events, etc.
In TeamCenter, on the Roster tab, click either Players or Staff.
In the Status column for the player or staff member that you want to invite, click Invite to send an invitation to claim their profile.
Enter the email address and click Invite Player. If the player has a SportsEngine account, they will then receive an email (below) and a notification in their SportsEngine User Dashboard notifying them to join the team. Once they do, their status in TeamCenter will change from Non-Member to Member.