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// graph-permissions · IdentityDiagnostic

IdentityDiagnostic.Read.AllMicrosoft Graph permission · Medium risk

Allows the app to read all identity diagnostics information, including symptoms, runs, statuses, and results for all users in the organization, without a signed-in user.

Application permission

Medium risk

Read all identity diagnostics. Allows the app to read all identity diagnostics information, including symptoms, runs, statuses, and results for all users in the organization, without a signed-in user.

IDbb1e8ab4-fe40-4b26-82ec-65dfaf4d367b
ConsentAlways needs admin consent
RiskReads data across the tenant without a signed-in user.

Delegated permission

Low risk

Read all identity diagnostics. Allows the app to read all identity diagnostics information, including symptoms, runs, statuses, and results for all users in the organization, on behalf of the signed-in user.

ID9181fb3f-4b8e-45ef-98ae-41774b813b80
ConsentNeeds admin consent
RiskRead access, limited to what the signed-in user can see.

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 "bb1e8ab4-fe40-4b26-82ec-65dfaf4d367b"

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 "IdentityDiagnostic.Read.All"

Which apps already have it?

powershell6 lines
# Apps that hold IdentityDiagnostic.Read.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 "bb1e8ab4-fe40-4b26-82ec-65dfaf4d367b" |
    Select-Object PrincipalDisplayName, PrincipalId, CreatedDateTime
powershell6 lines
# Apps with delegated consent for IdentityDiagnostic.Read.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 "IdentityDiagnostic.Read.All" } |
    Select-Object ClientId, ConsentType, PrincipalId

Other IdentityDiagnostic permissions

Check every app in your tenant → Permission explainer

Sources