Public/Invoke-IntuneRestoreGroupPolicyConfigurationAssignment.ps1
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function Invoke-IntuneRestoreGroupPolicyConfigurationAssignment { <# .SYNOPSIS Restore Intune Group Policy Configuration Assignments .DESCRIPTION Restore Intune Group Policy Configuration Assignments from JSON files per Group Policy Configuration from the specified Path. .PARAMETER Path Root path where backup files are located, created with the Invoke-IntuneBackupGroupPolicyConfigurationAssignment function .PARAMETER RestoreById If RestoreById is set to true, assignments will be restored to Intune Device Management Scripts that match the id. If RestoreById is set to false, assignments will be restored to Intune Device Management Scripts that match the file name. This is necessary if the Device Management Script was restored from backup, because then a new Device Management Script is created with a new unique ID. .EXAMPLE Invoke-IntuneRestoreGroupPolicyConfigurationAssignment -Path "C:\temp" -RestoreById $true #> [CmdletBinding()] param( [Parameter(Mandatory = $true)] [string]$Path, [Parameter(Mandatory = $false)] [bool]$RestoreById = $false, [Parameter(Mandatory = $false)] [ValidateSet("v1.0", "Beta")] [string]$ApiVersion = "Beta" ) # Set the Microsoft Graph API endpoint if (-not ((Get-MSGraphEnvironment).SchemaVersion -eq $apiVersion)) { Update-MSGraphEnvironment -SchemaVersion $apiVersion -Quiet Connect-MSGraph -ForceNonInteractive -Quiet } # Get all policies with assignments $groupPolicyConfigurations = Get-ChildItem -Path "$Path\Administrative Templates\Assignments" foreach ($groupPolicyConfiguration in $groupPolicyConfigurations) { $groupPolicyConfigurationAssignments = Get-Content -LiteralPath $groupPolicyConfiguration.FullName | ConvertFrom-Json $groupPolicyConfigurationId = ($groupPolicyConfigurationAssignments[0]).id.Split("_")[0] # Create the base requestBody $requestBody = @{ assignments = @() } # Add assignments to restore to the request body foreach ($groupPolicyConfigurationAssignment in $groupPolicyConfigurationAssignments) { $requestBody.assignments += @{ "target" = $groupPolicyConfigurationAssignment.target } } # Convert the PowerShell object to JSON $requestBody = $requestBody | ConvertTo-Json -Depth 3 # Get the Group Policy Configuration we are restoring the assignments for try { if ($restoreById) { $groupPolicyConfigurationObject = Invoke-MSGraphRequest -HttpMethod GET -Url "deviceManagement/groupPolicyConfigurations/$groupPolicyConfigurationId" } else { $groupPolicyConfigurationObject = Invoke-MSGraphRequest -HttpMethod GET -Url "deviceManagement/groupPolicyConfigurations" | Get-MSGraphAllPages | Where-Object displayName -eq "$($groupPolicyConfiguration.BaseName)" if (-not ($groupPolicyConfigurationObject)) { Write-Warning "Error retrieving Intune Administrative Template for $($groupPolicyConfiguration.FullName). Skipping assignment restore" continue } } } catch { Write-Output "Error retrieving Intune Administrative Template for $($groupPolicyConfiguration.FullName). Skipping assignment restore" Write-Error $_ -ErrorAction Continue continue } # Restore the assignments try { $null = Invoke-MSGraphRequest -HttpMethod POST -Content $requestBody.toString() -Url "deviceManagement/groupPolicyConfigurations/$($groupPolicyConfigurationObject.id)/assign" -ErrorAction Stop Write-Output "$($groupPolicyConfigurationObject.displayName) - Successfully restored Administrative Template Assignment(s)" } catch { Write-Output "$($groupPolicyConfigurationObject.displayName) - Failed to restore Administrative Template Assignment(s)" Write-Error $_ -ErrorAction Continue } } } |