1. Navigate to your team by clicking your avatar in the bottom left corner (upper right on mobile), then switching to the TEAMS tab.
2. Here you will see all of the teams you are a part of.
Select the one you wish to add players to, then click the Invite button on the top right.
Note that only team captains can invite.
3. Send the invite link to the person you are inviting.
If you were already registered for a tournament, the new member will not be added to the tournament roster after joining the team. Unjoin and join the tournament again, after all the members that wish to play are in your Battlefy team.