// graph-permissions · TeamsAppInstallation

TeamsAppInstallation.ReadWriteSelectedForUserMicrosoft Graph permission · Medium risk

Allows the app to read, install, upgrade, and uninstall selected Teams apps installed for the signed in user. Does not give the ability to read application-specific settings.

Delegated permission

Medium risk

Manage selected Teams apps installed for a user. Allows the app to read, install, upgrade, and uninstall selected Teams apps installed for the signed in user. Does not give the ability to read application-specific settings.

ID	`ea819e27-c92a-4118-b83b-4540b125d744`
Consent	Needs admin consent
Risk	Can make changes. Check the scope is as narrow as possible.

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.ReadWriteSelectedForUser"

Which apps already have it?

powershell6 lines

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

Other TeamsAppInstallation permissions

Check every app in your tenant → Permission explainer

Sources

Microsoft Learn: Microsoft Graph permissions reference