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Open the team you want to add members to.
Click on the three horizontal dots neat near the team’s name on the left-side navigation menu, then click “Add member”:
Enter the email addresses of the members you want to add to the team.
Click "Add" to add the members to the team.
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Open Microsoft Teams.
Click on the "Teams" button located at the bottom of the left-side navigation menu:
Click on the team you want to participate in:
In the team, you can participate in channels, conversations, access and share files, and collaborate with other team members.
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