Allow Message Service Cloud Sync
Verified with Windows 11 25H2 — updated on July 30, 2026
Supported on: At least Windows Server 2016, Windows 10 Version 1709
Path in the GPO console
Computer Configuration\Administrative Templates\Windows Components\Messaging Description
This policy setting allows backup and restore of cellular text messages to Microsoft's cloud services.
Registry
HKLM
Software\Policies\Microsoft\Windows\Messaging Value name: AllowMessageSync
Enabled: AllowMessageSync = 1
Disabled: AllowMessageSync = 0
MDM / Intune (CSP)
./Device/Vendor/MSFT/Policy/Config/Messaging/AllowMessageSync Microsoft Learn documentation Mapping data: Microsoft Learn (CC BY 4.0)
CSP values
-
0- Message sync isn't allowed and can't be changed by the user. -
1 (Default)- Message sync is allowed. The user can change this setting.
Export Builder
BETAConfigure 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: Allow Message Service Cloud Sync
; State: Enabled
; Supported on: At least Windows Server 2016, Windows 10 Version 1709
[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Messaging]
"AllowMessageSync"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Allow Message Service Cloud Sync
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1709
$path = 'HKLM:\Software\Policies\Microsoft\Windows\Messaging'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowMessageSync' -Value 1 -Type DWordIntune XML
OMA-URI: ./Device/Vendor/MSFT/Policy/Config/Messaging/AllowMessageSync
Data type: String
Value:
<enabled/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Allow Message Service Cloud Sync
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1709
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows\Messaging' -Name 'AllowMessageSync' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Allow Message Service Cloud Sync
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1709
$path = 'HKLM:\Software\Policies\Microsoft\Windows\Messaging'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowMessageSync' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Allow Message Service Cloud Sync
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1709
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.
# === Detection script ===
# Exported from gporais.com
# Policy: Allow Message Service Cloud Sync
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1709
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Microsoft\Windows\Messaging' -Name 'AllowMessageSync' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Allow Message Service Cloud Sync
# State: Enabled
# Supported on: At least Windows Server 2016, Windows 10 Version 1709
$path = 'HKLM:\Software\Policies\Microsoft\Windows\Messaging'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'AllowMessageSync' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.