This policy setting allows backup and restore of cellular text messages to Microsoft's cloud services. The recommended state for this setting is: Disabled. Rationale: In a high security environment, data should never be sent to any 3rd party since this data could contain sensitive information. Impact: Cellular text messages will not be backed up to (or restored from) Microsoft's cloud services.
Solution
To establish the recommended configuration, set the following Device Configuration Policy to Disabled: To access the Device Configuration Policy from the Intune Home page: Click Devices Click Configuration profiles Click Create profile Select the platform (Windows 10 and later) Select the profile (Custom) Click Create Enter a Name Click Next Configure the following Setting Name: <Enter name> Description: <Enter Description> OMA-URI: ./Device/Vendor/MSFT/Policy/Config/Messaging/AllowMessageSync Data type: Integer Value: 0 Select OK Continue through the Wizard to complete the creation of the profile (profile assignments, applicability etc.) Note: More than one configuration setting from each of the Configuration profiles (ex: Administrative Templates, Custom etc.) can be added to each Device Configuration Policy. Default Value: Enabled. (Cellular text messages can be backed up and restored to Microsoft's cloud services.)