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// graph-permissions · DelegatedPermissionGrant

DelegatedPermissionGrant.ReadWrite.AllMicrosoft Graph permission · Critical risk

Allows the app to manage permission grants for delegated permissions exposed by any API (including Microsoft Graph), without a signed-in user.

Application permission

Critical risk

Manage all delegated permission grants. Allows the app to manage permission grants for delegated permissions exposed by any API (including Microsoft Graph), without a signed-in user.

ID8e8e4742-1d95-4f68-9d56-6ee75648c72a
ConsentAlways needs admin consent
RiskCan be used to take over the tenant or grant itself more access. Grant only to tightly controlled, well-known apps.

Delegated permission

Critical risk

Manage all delegated permission grants. Allows the app to manage permission grants for delegated permissions exposed by any API (including Microsoft Graph), on behalf of the signed in user.

ID41ce6ca6-6826-4807-84f1-1c82854f7ee5
ConsentNeeds admin consent
RiskCan be used to take over the tenant or grant itself more access. Grant only to tightly controlled, well-known apps.

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 "8e8e4742-1d95-4f68-9d56-6ee75648c72a"

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 "DelegatedPermissionGrant.ReadWrite.All"

Which apps already have it?

powershell6 lines
# Apps that hold DelegatedPermissionGrant.ReadWrite.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 "8e8e4742-1d95-4f68-9d56-6ee75648c72a" |
    Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime
powershell6 lines
# Apps with delegated consent for DelegatedPermissionGrant.ReadWrite.All
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 "DelegatedPermissionGrant.ReadWrite.All" } |
    Select-Object ClientId, ConsentType, PrincipalId

Other DelegatedPermissionGrant permissions

Check every app in your tenant → Permission explainer

Sources