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// graph-permissions · TeamsAppInstallation

TeamsAppInstallation.ReadWriteAndConsentSelfForUser.AllMicrosoft Graph permission · High risk

Allows a Teams app to read, install, upgrade, and uninstall itself for any user account, without a signed-in user, and manage its permission grants for accessing those specific users' data.

Application permission

High risk

Allow the Teams app to manage itself and its permission grants in all user accounts. Allows a Teams app to read, install, upgrade, and uninstall itself for any user account, without a signed-in user, and manage its permission grants for accessing those specific users' data.

IDa87076cf-6abd-4e56-8559-4dbdf41bef96
ConsentAlways needs admin consent
RiskCan change data across the whole tenant.

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 "a87076cf-6abd-4e56-8559-4dbdf41bef96"

Which apps already have it?

powershell6 lines
# Apps that hold TeamsAppInstallation.ReadWriteAndConsentSelfForUser.All 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 "a87076cf-6abd-4e56-8559-4dbdf41bef96" |
    Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime

Other TeamsAppInstallation permissions

Check every app in your tenant → Permission explainer

Sources