// graph-permissions · TeamsAppInstallation

TeamsAppInstallation.ReadWriteAndConsentForTeamMicrosoft Graph permission · Medium risk

Allows the app to read, install, upgrade, and uninstall Teams apps in teams the signed-in user can access. Gives the ability to manage permission grants for accessing those specific teams' data.

Delegated permission

Medium risk

Manage installed Teams apps in teams. Allows the app to read, install, upgrade, and uninstall Teams apps in teams the signed-in user can access. Gives the ability to manage permission grants for accessing those specific teams' data.

ID	`946349d5-2a9d-4535-abc0-7beeacaedd1d`
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.ReadWriteAndConsentForTeam"

Which apps already have it?

powershell6 lines

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

Other TeamsAppInstallation permissions

Check every app in your tenant → Permission explainer

Sources

Microsoft Learn: Microsoft Graph permissions reference