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Log SharePoint sync requests and responses

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\Account Settings\SharePoint Lists

Description

This policy setting allows you to control whether sync requests and responses between Outlook and SharePoint are logged. Log files can help diagnose problems with Outlook and SharePoint interactions. Each log file links to one or more XML files (also in the TEMP directory) containing detailed server response and error information. The XML filename is based on the corresponding log file; you can obtain all related diagnostic files by copying all *-wss-*.* files from the TEMP directory. If you enable this policy setting, Outlook logs most sync requests and responses to a log file stored in the user's TEMP directory. One log file is created per session (up to seven total), using the naming convention: 0-wss-sync-log.HTM, 1-wss-sync-log.HTM, etc. If you disable or do not configure this policy setting, sync requests and responses between Outlook and SharePoint are not logged.

Registry

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

Value name: enablewsssynclogging

Enabled: enablewsssynclogging = 1

Disabled: enablewsssynclogging = 0

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: Log SharePoint sync requests and responses
; State: Enabled
; Supported on: At least Windows Server 2008 R2 or Windows 7

[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options\mail]
"enablewsssynclogging"=dword:00000001
More formats (PowerShell, Intune, SCCM)

PowerShell

# Exported from gporais.com
# Policy: Log SharePoint sync requests and responses
# 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\mail'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'enablewsssynclogging' -Value 1 -Type DWord

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

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