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// graph-permissions · ChatMember

ChatMember.Read.WhereInstalledMicrosoft Graph permission · Low risk

Allows the app to read the members of all chats where the associated Teams application is installed, without a signed-in user.

Application permission

Low risk

Read the members of all chats where the associated Teams application is installed.. Allows the app to read the members of all chats where the associated Teams application is installed, without a signed-in user.

ID93e7c9e4-54c5-4a41-b796-f2a5adaacda7
ConsentAlways needs admin consent
RiskRead access, limited to what the signed-in user can see.

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 "93e7c9e4-54c5-4a41-b796-f2a5adaacda7"

Which apps already have it?

powershell6 lines
# Apps that hold ChatMember.Read.WhereInstalled 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 "93e7c9e4-54c5-4a41-b796-f2a5adaacda7" |
    Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime

Other ChatMember permissions

Check every app in your tenant → Permission explainer

Sources