When you send someone a code for joining a team, they can join directly—you won’t get a join request. You can use the code as many times as you want.
If you’re a team owner, go to the team name and click More options > Manage team.
1. Select the Settings tab
2. Select Team code > Generate. Click Copy.
Share the code with your invitees however you choose—send the code to a single person via chat or write it on a white board for a whole room full of people.
People can use the code on the Suggested teams screen.