Once you join a new team, it’s instantly displayed in your teams list. If you know you’re a member of a team but don’t observe it, scroll to the bottom of your teams list and press See all teams.
Show a channel
Touch Teams and visit the bottom of the team list. Select All teams, then press the team the channel is in and select the circle beside your desired channel to display.
Note: To help get you up and running, Teams automatically shows the five most popular channels in every new team you join.
Delete a channel
Press Teams , locate the team name, and choose More options > Manage channels. Then, pick More options next to the channel name and choose Delete channel.