<#

.SYNOPSIS 
Lists all Microsoft Teams by name, team members and team channels.
 
.DESCRIPTION 
Copy this code into an editor or your choosing 
(recommended: PowerShell ISE or VS Code)
 
.NOTES 
Author: Patrick Gruenauer | Microsoft MVP PowerShell
Web: https://sid-500.com 

#>

# Check if Teams Module is installed. If not, it will be installed


If (-not (Get-Module -ListAvailable | Where-Object Name -eq 'MicrosoftTeams' ))

{

  Install-Module -Name MicrosoftTeams -Force -AllowClobber

}

# Connect to Microsoft Teams

Connect-MicrosoftTeams

# List all Teams and all Channels

$ErrorAction = "SilentlyContinue"

$allteams = Get-Team
$object = @()

foreach ($t in $allteams) {

    $members = Get-TeamUser -GroupId $t.GroupId

    $owner = Get-TeamUser -GroupId $t.GroupId -Role Owner

    $channels = Get-TeamChannel -GroupId $t.GroupId 

    $object += New-Object -TypeName PSObject -Property ([ordered]@{

        'Team'= $t.DisplayName
        'GroupId' = $t.GroupId
        'Owner' = $owner.User
        'Members' = $members.user -join "`r`n"
        'Channels' = $channels.displayname -join "`r`n"
    
        })
        
}
Write-Output $object