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// graph-permissions · TeamsAppInstallation

TeamsAppInstallation.ReadWriteAndConsentForTeam.AllMicrosoft Graph permission · High risk

Allows the app to read, install, upgrade, and uninstall Teams apps in any team, without a signed-in user. Gives the ability to manage permission grants for accessing those specific teams' data.

Application permission

High risk

Manage installation and permission grants of Teams apps for all teams. Allows the app to read, install, upgrade, and uninstall Teams apps in any team, without a signed-in user. Gives the ability to manage permission grants for accessing those specific teams' data.

IDb0c13be0-8e20-4bc5-8c55-963c23a39ce9
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 "b0c13be0-8e20-4bc5-8c55-963c23a39ce9"

Which apps already have it?

powershell6 lines
# Apps that hold TeamsAppInstallation.ReadWriteAndConsentForTeam.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 "b0c13be0-8e20-4bc5-8c55-963c23a39ce9" |
    Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime

Other TeamsAppInstallation permissions

Check every app in your tenant → Permission explainer

Sources