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Managing Teams and Groups

Microsoft 365 uses groups extensively. The Microsoft Graph PowerShell module lets you manage M365 Groups, Security Groups, and Teams from a single set of cmdlets.

Understanding Group Types

|------|---------|-------------|---------------|

| M365 Group | Collaboration (email, files, calendar) | Yes | Yes |

| Security Group | Access control and licensing | No | No |

| Team | An M365 Group with Microsoft Teams enabled | Yes | Yes |

Key Concept: Every Microsoft Team is backed by an M365 Group, but not every M365 Group has a Team. When you create a Team, a group is created automatically.

Working with Groups

List and create groups using Get-MgGroup and New-MgGroup:

powershell

# Get all groups
Get-MgGroup -All

# Filter for a specific group
Get-MgGroup -Filter "displayName eq 'Engineering'"

# Create a new M365 Group
New-MgGroup -DisplayName "Design Team" -MailEnabled:$true `
    -MailNickname "designteam" -SecurityEnabled:$false `
    -GroupTypes "Unified"

To create a security group instead, set -MailEnabled:$false, -SecurityEnabled:$true, and omit -GroupTypes.

Working with Teams

Retrieve Teams information and create channels:

powershell

# Get a specific team (requires the group ID)
$group = Get-MgGroup -Filter "displayName eq 'Engineering'"
Get-MgTeam -TeamId $group.Id

# Create a new channel
New-MgTeamChannel -TeamId $group.Id `
    -DisplayName "Code Reviews" -Description "Channel for code review discussions"

Managing Group Members

Add users to a group using New-MgGroupMember:

powershell

$group = Get-MgGroup -Filter "displayName eq 'Design Team'"
$user = Get-MgUser -Filter "userPrincipalName eq 'alex@contoso.com'"

New-MgGroupMember -GroupId $group.Id `
    -DirectoryObjectId $user.Id

To view current members of a group:

powershell

Get-MgGroupMember -GroupId $group.Id | ForEach-Object {
    Get-MgUser -UserId $_.Id | Select-Object DisplayName, UserPrincipalName
}

Key Concept: Microsoft Graph cmdlets use object IDs (GUIDs) to reference resources, not display names. You typically look up the ID first with Get-MgGroup or Get-MgUser, then pass it to other cmdlets.

Exercises

0/4 completed

Write the command to get all Microsoft 365 groups using the Microsoft Graph module.

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