In your organization’s app, tap the More icon at the bottom right of the navigation bar
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Select Teams from the menu
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Under 'Teams you administrate,' select the name of the team you wish to remove members from
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On iOS, tap the team members section. On Android, tap the users icon
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On iOS, tap the name of the user you wish to remove then tap Remove from team. On Android, tap the more button (three vertical dots) next to the user you wish to remove then tap Remove from team