Control Calendar Sharing: registry value payloadcalendardetailspolicyUserHKCU\software\policies\microsoft\office\16.0\outlook\options\calendar

Policy ID: L_ControlCalendarSharing
Scope: User Configuration
Supported on: At least Windows Server 2008 R2 or Windows 7
Source: Microsoft 365 Apps / Office Administrative Templates (version 5568.1000)
Category: Microsoft Outlook 2016 › Outlook Options › Preferences › Calendar Options

Registry

payloadcalendardetailspolicy

REG_DWORDUser

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

Enabled value: Depends on the option value
Element: Control Calendar Sharing

Options
Item	Stored value
Prevent Calendar Sharing	32768
Allow calendar sharing with 'Availability Only' detail level	16384
Allow calendar sharing with 'Availability Only' and 'Limited Details' detail level	8192

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\calendar]

; Options (use only one)
; Prevent Calendar Sharing
"payloadcalendardetailspolicy"=dword:00008000
; Allow calendar sharing with 'Availability Only' detail level
"payloadcalendardetailspolicy"=dword:00004000
; Allow calendar sharing with 'Availability Only' and 'Limited Details' detail level
"payloadcalendardetailspolicy"=dword:00002000

CMD

:: Options (use only one)

:: Prevent Calendar Sharing
reg add "HKCU\software\policies\microsoft\office\16.0\outlook\options\calendar" /v "payloadcalendardetailspolicy" /t REG_DWORD /d 32768 /f
:: Allow calendar sharing with 'Availability Only' detail level
reg add "HKCU\software\policies\microsoft\office\16.0\outlook\options\calendar" /v "payloadcalendardetailspolicy" /t REG_DWORD /d 16384 /f
:: Allow calendar sharing with 'Availability Only' and 'Limited Details' detail level
reg add "HKCU\software\policies\microsoft\office\16.0\outlook\options\calendar" /v "payloadcalendardetailspolicy" /t REG_DWORD /d 8192 /f

PowerShell

# Common: create the key
New-Item -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\options\calendar' -Force | Out-Null

# Options (use only one)
# Prevent Calendar Sharing
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\options\calendar' -Name 'payloadcalendardetailspolicy' -PropertyType DWord -Value 32768 -Force | Out-Null
# Allow calendar sharing with 'Availability Only' detail level
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\options\calendar' -Name 'payloadcalendardetailspolicy' -PropertyType DWord -Value 16384 -Force | Out-Null
# Allow calendar sharing with 'Availability Only' and 'Limited Details' detail level
New-ItemProperty -Path 'HKCU:\software\policies\microsoft\office\16.0\outlook\options\calendar' -Name 'payloadcalendardetailspolicy' -PropertyType DWord -Value 8192 -Force | Out-Null