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// graph-permissions · CallDelegation

CallDelegation.ReadWrite.AllMicrosoft Graph permission · High risk

Allows the app to read and write delegation settings of you

Application permission

High risk

Read and write delegation settings. Allows the app to read and write delegation settings of you

ID8d06abce-e69b-4122-ba60-4f901bb1db2f
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 "8d06abce-e69b-4122-ba60-4f901bb1db2f"

Which apps already have it?

powershell6 lines
# Apps that hold CallDelegation.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 "8d06abce-e69b-4122-ba60-4f901bb1db2f" |
    Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime

Other CallDelegation permissions

Check every app in your tenant → Permission explainer

Sources