en-US office user

Control Calendar Sharing

Verified with Microsoft 365/Office 5568.1000 — updated on September 4, 2026

Microsoft 365/Office 5568.1000

Supported on: At least Windows Server 2008 R2 or Windows 7

Path in the GPO console

User Configuration\Administrative Templates\Microsoft Outlook 2016\Outlook Options\Preferences\Calendar Options

Description

By default, users can share an entire calendar by saving it in the iCalendar format, or share a snapshot of a calendar by using e-mail. This setting allows you to specify the detail level in the shared versions of calendars, or to disable sharing of calendars.

Registry

HKCU software\policies\microsoft\office\16.0\outlook\options\calendar

More options available

Options

Control Calendar Sharing
payloadcalendardetailspolicy enum
  • Prevent Calendar Sharing -> 32768 (default)
  • Allow calendar sharing with 'Availability Only' detail level -> 16384
  • Allow calendar sharing with 'Availability Only' and 'Limited Details' detail level -> 8192

Export Builder

BETA

Configure the state, scope and options, then generate .reg, PowerShell, Intune and SCCM outputs — or add the setting to a multi-setting collection.

These exports write the registry — this is not a managed GPO.

.reg file

Windows Registry Editor Version 5.00

; Exported from gporais.com
; Policy: Control Calendar Sharing
; State: Enabled
; Supported on: At least Windows Server 2008 R2 or Windows 7

[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\calendar]
"payloadcalendardetailspolicy"=dword:00008000
More formats (PowerShell, Intune, SCCM)

PowerShell

# Exported from gporais.com
# Policy: Control Calendar Sharing
# State: Enabled
# Supported on: At least Windows Server 2008 R2 or Windows 7
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.

$path = 'HKCU:\software\policies\microsoft\office\16.0\outlook\options\calendar'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'payloadcalendardetailspolicy' -Value 32768 -Type DWord

Building a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.

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