// graph-permissions · TeamsAppInstallation

TeamsAppInstallation.ReadForUserMicrosoft Graph permission · Low risk

Allows the app to read the Teams apps that are installed for the signed-in user. Does not give the ability to read application-specific settings.

Delegated permission

Low risk

Read user's installed Teams apps. Allows the app to read the Teams apps that are installed for the signed-in user. Does not give the ability to read application-specific settings.

ID	`c395395c-ff9a-4dba-bc1f-8372ba9dca84`
Consent	Users can consent, if your consent settings allow it
Risk	Read access, limited to what the signed-in user can see.

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 "TeamsAppInstallation.ReadForUser"

Which apps already have it?

powershell6 lines

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6# Apps with delegated consent for TeamsAppInstallation.ReadForUser
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 "TeamsAppInstallation.ReadForUser" } |
    Select-Object ClientId, ConsentType, PrincipalId

Other TeamsAppInstallation permissions

Check every app in your tenant → Permission explainer

Sources

Microsoft Learn: Microsoft Graph permissions reference