How does a Team Admin confirm a new member into a team?

When a player enters your team's join code, they will automatically become a member of your team.

However, there is an available setting (under the "Settings" option on the Team Admin Tools menu) that allows a Team Admin to require confirmation before a player becomes a team member.

In these cases, the player enters your join code and will then be listed under a separate group of players on the Player List, noted as "Unconfirmed". The Team Admin must manually select each (or all) of these players and indicate that they are confirmed to join the team. Or the Team Admin may reject their attempt to join the team, and remove them.

This can be a valuable tool for Team Admins whose Join Code may be widely available, but who want to limit their team to very specific individuals.