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// graph-permissions · TeamMember

TeamMember.ReadWrite.AllMicrosoft Graph permission · High risk

Add and remove members from all teams, without a signed-in user. Also allows changing a team member's role, for example from owner to non-owner.

Application permission

High risk

Add and remove members from all teams. Add and remove members from all teams, without a signed-in user. Also allows changing a team member's role, for example from owner to non-owner.

ID0121dc95-1b9f-4aed-8bac-58c5ac466691
ConsentAlways needs admin consent
RiskCan change data across the whole tenant.

Delegated permission

High risk

Add and remove members from teams. Add and remove members from teams, on behalf of the signed-in user. Also allows changing a member's role, for example from owner to non-owner.

ID4a06efd2-f825-4e34-813e-82a57b03d1ee
ConsentNeeds admin consent
RiskCan change data across the whole tenant.

Grant it to an app

In the portal: App registrations › your app › API permissions › Add a permission › Microsoft Graph › Application permissions, then grant admin consent. Or with Graph PowerShell:

powershell5 lines
Connect-MgGraph -Scopes "Application.Read.All", "AppRoleAssignment.ReadWrite.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
$app   = Get-MgServicePrincipal -Filter "appId eq '<your app's client id>'"
New-MgServicePrincipalAppRoleAssignment -ServicePrincipalId $app.Id `
    -PrincipalId $app.Id -ResourceId $graph.Id -AppRoleId "0121dc95-1b9f-4aed-8bac-58c5ac466691"

Ask for it when signing in

Delegated permissions act as the signed-in user, so the app can never do more than that user can.

powershell1 line
Connect-MgGraph -Scopes "TeamMember.ReadWrite.All"

Which apps already have it?

powershell6 lines
# Apps that hold TeamMember.ReadWrite.All as an application permission
Connect-MgGraph -Scopes "Application.Read.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
Get-MgServicePrincipalAppRoleAssignedTo -ServicePrincipalId $graph.Id -All |
    Where-Object AppRoleId -eq "0121dc95-1b9f-4aed-8bac-58c5ac466691" |
    Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime
powershell6 lines
# Apps with delegated consent for TeamMember.ReadWrite.All
Connect-MgGraph -Scopes "Application.Read.All", "Directory.Read.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
Get-MgOauth2PermissionGrant -All |
    Where-Object { $_.ResourceId -eq $graph.Id -and ($_.Scope -split " ") -contains "TeamMember.ReadWrite.All" } |
    Select-Object ClientId, ConsentType, PrincipalId

Other TeamMember permissions

Check every app in your tenant → Permission explainer

Sources