magic to fix microsoft casing issue

apparently some of the setting templates in the catalog have guids in uppercase, when retrieving the policy later, the guid is normalized to lowercase and can not be deployed without fixing the casing

Author: JohnDuprey

Modules/CIPPCore/Public/Set-CIPPIntunePolicy.ps1

@@ -109,6 +109,40 @@ function Set-CIPPIntunePolicy {
                 $PlatformType = 'deviceManagement'
                 $TemplateTypeURL = 'configurationPolicies'
                 $DisplayName = ($RawJSON | ConvertFrom-Json).Name
+
+                $Template = $RawJSON | ConvertFrom-Json
+                if ($Template.templateReference.templateId) {
+                    Write-Information "Checking configuration policy template $($Template.templateReference.templateId) for $($DisplayName)"
+                    # Remove unavailable settings from the template
+                    $AvailableSettings = New-GraphGETRequest -uri "https://graph.microsoft.com/beta/deviceManagement/configurationPolicyTemplates('$($Template.templateReference.templateId)')/settingTemplates?`$expand=settingDefinitions&`$top=1000" -tenantid $tenantFilter
+
+                    if ($AvailableSettings) {
+                        Write-Information "Available settings for template $($Template.templateReference.templateId): $($AvailableSettings.Count)"
+                        $FilteredSettings = [system.collections.generic.list[psobject]]::new()
+                        foreach ($setting in $Template.settings) {
+                            if ($setting.settingInstance.settingInstanceTemplateReference.settingInstanceTemplateId -in $AvailableSettings.settingInstanceTemplate.settingInstanceTemplateId) {
+                                $AvailableSetting = $AvailableSettings | Where-Object { $_.settingInstanceTemplate.settingInstanceTemplateId -eq $setting.settingInstance.settingInstanceTemplateReference.settingInstanceTemplateId }
+
+                                if ($AvailableSetting.settingInstanceTemplate.settingInstanceTemplateId -cnotmatch $setting.settingInstance.settingInstanceTemplateReference.settingInstanceTemplateId) {
+                                    # update casing
+                                    Write-Information "Fixing casing for setting instance template $($AvailableSetting.settingInstanceTemplate.settingInstanceTemplateId)"
+                                    $setting.settingInstance.settingInstanceTemplateReference.settingInstanceTemplateId = $AvailableSetting.settingInstanceTemplate.settingInstanceTemplateId
+                                }
+
+                                if ($AvailableSetting.settingInstanceTemplate.choiceSettingValueTemplate -cnotmatch $setting.settingInstance.choiceSettingValue.settingValueTemplateReference.settingValueTemplateId) {
+                                    # update choice setting value template
+                                    Write-Information "Fixing casing for choice setting value template $($AvailableSetting.settingInstanceTemplate.choiceSettingValueTemplate.settingValueTemplateId)"
+                                    $setting.settingInstance.choiceSettingValue.settingValueTemplateReference.settingValueTemplateId = $AvailableSetting.settingInstanceTemplate.choiceSettingValueTemplate.settingValueTemplateId
+                                }
+
+                                $FilteredSettings.Add($setting)
+                            }
+                        }
+                        $Template.settings = $FilteredSettings
+                        $RawJSON = $Template | ConvertTo-Json -Depth 100 -Compress
+                    }
+                }
+
                 $CheckExististing = New-GraphGETRequest -uri "https://graph.microsoft.com/beta/$PlatformType/$TemplateTypeURL" -tenantid $tenantFilter
                 if ($DisplayName -in $CheckExististing.name) {
                     $PolicyFile = $RawJSON | ConvertFrom-Json | Select-Object * -ExcludeProperty Platform, PolicyType, CreationSource