First click Teams on the left side of the app, then click Join or create a team at the bottom of the teams list. On the Create a team tile, click Create team.
From there, you can name your team, add a description, and edit the team's data classification. Once you've done that, you can invite people, groups, or even entire contact groups (formerly known as "distribution lists") to join your team.
Feel free to create more teams—you can have up to 250 teams per account.
Note: Your organization can restrict who can create teams. If you can't create a team or need to turn off team creation, check with your IT admin.
Tap Teams at the bottom of the app, then Settings in the top right corner. This will bring you to the Manage teams page. Tap to create a new team.
Name the team, add a description, and choose its privacy level and data classification. After that, you're ready to start adding members. Invite people, groups, or even entire contact groups to join your new team.