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In the Chat pane in combined mode or Teams pane, select (
) More list options, and choose  Your teams and channels. -
Select the down arrow by
 ​​​​​​​Create a team at the top, and choose Join team. -
Go to Join a team with a code, paste the code in the Enter join code box, and select Add team.
To create a code to send out to potential team members, see Create a team code.