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← cd ~/graph-permissions
// graph-permissions · Calendars

Calendars.Read.SharedMicrosoft Graph permission · Medium risk

Allows the app to read events in all calendars that the user can access, including delegate and shared calendars.

Delegated permission

Medium risk

Read user and shared calendars. Allows the app to read events in all calendars that the user can access, including delegate and shared calendars.

ID2b9c4092-424d-4249-948d-b43879977640
ConsentUsers can consent, if your consent settings allow it
RiskReads or changes the signed-in user's content, limited to what that user can access.

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 "Calendars.Read.Shared"

Which apps already have it?

powershell6 lines
# Apps with delegated consent for Calendars.Read.Shared
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 "Calendars.Read.Shared" } |
    Select-Object ClientId, ConsentType, PrincipalId

Other Calendars permissions

Check every app in your tenant → Permission explainer

Sources