en-US office user

Turn on logging for all conflicts

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\Other\Advanced

Description

This policy setting allows you to create Modification Resolution logs whenever the Outlook conflict resolver runs. If you enable this policy setting, Outlook will create Modification Resolution logs whenever the Outlook conflict resolver runs. By default, Modification Resolution logs are written into the Sync Issues folder whenever Outlook's conflict resolver cannot resolve a conflict. You may select one of these options: - No conflicts are logged: No Modification Resolution logs are written into the Sync Issues folder whenever Outlook's conflict resolver runs. - All conflicts logged: Modification Resolution logs are written into the Sync Issues folder whenever Outlook's conflict resolver runs. - Unresolved conflicts logged only: Modification Resolution logs are written into the Sync Issues folder in Outlook when the Outlook conflict resolver cannot resolve a conflict. This applies to all item types. If you disable or do not configure this policy setting, no Modification Resolution logs are written when the Outlook conflict resolver runs.

Registry

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

More options available

Options

enableconflictlogging enum
  • No conflicts are logged (default) -> 0 (default)
  • All conflicts logged -> 1
  • Unresolved conflicts logged only -> 2

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: Turn on logging for all conflicts
; State: Enabled
; Supported on: At least Windows Server 2008 R2 or Windows 7

[HKEY_CURRENT_USER\software\policies\microsoft\office\16.0\outlook\options]
"enableconflictlogging"=dword:00000000
More formats (PowerShell, Intune, SCCM)

PowerShell

# Exported from gporais.com
# Policy: Turn on logging for all conflicts
# 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'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'enableconflictlogging' -Value 0 -Type DWord

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

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