// graph-permissions · TeamsAppInstallation

TeamsAppInstallation.ReadWriteAndConsentForUserMicrosoft Graph permission · Medium risk

Allows the app to read, install, upgrade, and uninstall Teams apps in user accounts, on behalf of the signed-in user. Gives the ability to manage permission grants for accessing those specific users' data.

Delegated permission

Medium risk

Manage installation and permission grants of Teams apps in users' personal scope. Allows the app to read, install, upgrade, and uninstall Teams apps in user accounts, on behalf of the signed-in user. Gives the ability to manage permission grants for accessing those specific users' data.

ID	`2da62c49-dfbd-40df-ba16-fef3529d391c`
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.ReadWriteAndConsentForUser"

Which apps already have it?

powershell6 lines

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

Other TeamsAppInstallation permissions

Check every app in your tenant → Permission explainer

Sources

Microsoft Learn: Microsoft Graph permissions reference