diff --git a/core/trigger.class.inc.php b/core/trigger.class.inc.php
index 273b09794..01242bc2e 100644
--- a/core/trigger.class.inc.php
+++ b/core/trigger.class.inc.php
@@ -53,7 +53,7 @@ abstract class Trigger extends cmdbAbstractObject
 		MetaModel::Init_AddAttribute(new AttributeEnumSet("context", array("allowed_values" => null, "possible_values" => new ValueSetEnumPadded($aTags, true), "sql" => "context", "depends_on" => array(), "is_null_allowed" => true, "max_items" => 12)));
 		// "complement" is a computed field, fed by Trigger sub-classes, in general in ComputeValues method, for eg. the TriggerOnObject fed it with target_class info
 		MetaModel::Init_AddAttribute(new AttributeString("complement", array("allowed_values" => null, "sql" => "complement", "default_value" => null, "is_null_allowed" => true, "depends_on" => array())));
-		MetaModel::Init_AddAttribute(new AttributeEnum("subscription_policy", array("allowed_values" => new ValueSetEnum(implode(",", array_map(fn($case) => $case->value, Combodo\iTop\Core\Trigger\Enum\SubscriptionPolicy::cases()))),  "sql" => "subscription_policy", "default_value" => \Combodo\iTop\Core\Trigger\Enum\SubscriptionPolicy::AllowNoChannel, "is_null_allowed" => false, "depends_on" => array())));
+		MetaModel::Init_AddAttribute(new AttributeEnum("subscription_policy", array("allowed_values" => new ValueSetEnum(implode(",", array_map(fn($case) => $case->value, Combodo\iTop\Core\Trigger\Enum\SubscriptionPolicy::cases()))),  "sql" => "subscription_policy", "default_value" => \Combodo\iTop\Core\Trigger\Enum\SubscriptionPolicy::AllowNoChannel->value, "is_null_allowed" => false, "depends_on" => array())));
 
 		// Display lists
 		MetaModel::Init_SetZListItems('details', array('finalclass', 'description', 'context', 'subscription_policy', 'action_list', 'complement')); // Attributes to be displayed for the complete details
diff --git a/core/valuesetdef.class.inc.php b/core/valuesetdef.class.inc.php
index c32766b0f..21a7fb654 100644
--- a/core/valuesetdef.class.inc.php
+++ b/core/valuesetdef.class.inc.php
@@ -471,6 +471,29 @@ class ValueSetEnum extends ValueSetDefinition
 	 */
 	protected bool $bSortByValues;
 
+	/**
+	 * @param string $sBackedEnumFQCN FQCN of the backed enum to use
+	 * @param bool $bSortValues {@see static::$bSortValues}
+	 *
+	 * @return \ValueSetEnum ValueSetEnum based on the values of the $sBackedEnumFQCN backed enum
+	 * @throws \CoreException
+	 * @since 3.2.0
+	 */
+	public static function FromBackedEnum(string $sBackedEnumFQCN, bool $bSortValues = false): ValueSetEnum
+	{
+		// First, check that we pass an enum as there is no generic type hint for that yet
+		if (false === enum_exists($sBackedEnumFQCN)) {
+			throw new CoreException("Can't instantiate " . __CLASS__ . "::" . __METHOD__ . " from a non-enum argument", [
+				"argument" => $sBackedEnumFQCN
+			]);
+		}
+
+		// Implode cases
+		$sJoinedValues = implode(",", array_map(fn($case) => $case->value, $sBackedEnumFQCN::cases()));
+
+		return new ValueSetEnum($sJoinedValues, $bSortValues);
+	}
+
 	/**
 	 * @param array|string $Values
 	 * @param bool $bLocalizedSort
diff --git a/sources/Controller/Notifications/NotificationsCenterController.php b/sources/Controller/Notifications/NotificationsCenterController.php
index 8520879dc..325715ffd 100644
--- a/sources/Controller/Notifications/NotificationsCenterController.php
+++ b/sources/Controller/Notifications/NotificationsCenterController.php
@@ -83,7 +83,7 @@ class NotificationsCenterController extends Controller
 			// Add the action notification to the list of actions notifications for the trigger
 			$oActionsNotificationsByTrigger[$iTriggerId][] = $oSubscribedActionNotification;
 			// Add the subscribed status to the list of subscribed actions notifications for the trigger
-			$aSubscribedActionsNotificationsByTrigger[$iTriggerId][$oSubscribedActionNotification->GetKey()] = $oLnkActionsNotifications->Get('subscribed') || $oTrigger->Get('subscription_policy') === SubscriptionPolicy::ForceAllChannels;
+			$aSubscribedActionsNotificationsByTrigger[$iTriggerId][$oSubscribedActionNotification->GetKey()] = $oLnkActionsNotifications->Get('subscribed') || $oTrigger->Get('subscription_policy') === SubscriptionPolicy::ForceAllChannels->value;
 		}
 
 		// Build table rows
@@ -156,7 +156,7 @@ class NotificationsCenterController extends Controller
 			$oChannelSet->SetOptionsTemplate('application/object/set/option_renderer.html.twig');
 			$oChannelSet->SetItemsTemplate('application/preferences/notification-center/item_renderer.html.twig');
 			// Disable the input set if the subscription policy is 'force_all_channels'
-			if ($sTriggerSubscriptionPolicy === SubscriptionPolicy::ForceAllChannels) {
+			if ($sTriggerSubscriptionPolicy === SubscriptionPolicy::ForceAllChannels->value) {
 				$oChannelSet->SetIsDisabled(true);
 			}
 			// Add a CSRF Token
@@ -192,7 +192,7 @@ $.ajax({
 JS
 			);
 			// Set the minimum number of channels to 1 if the subscription policy is {@see SubscriptionPolicy::ForceAtLeastOneChannel}
-			if($sTriggerSubscriptionPolicy === SubscriptionPolicy::ForceAtLeastOneChannel)
+			if($sTriggerSubscriptionPolicy === SubscriptionPolicy::ForceAtLeastOneChannel->value)
 			{
 				$oChannelSet->SetMinItems(1);
 			}
@@ -290,7 +290,7 @@ JS
 			// Add the action notification to the list of actions notifications for the trigger
 			$oActionsNotificationsByTrigger[$iTriggerId][] = $oSubscribedActionNotification;
 			// Add the subscribed status to the list of subscribed actions notifications for the trigger
-			$aSubscribedActionsNotificationsByTrigger[$iTriggerId][$oSubscribedActionNotification->GetKey()] = $oLnkActionsNotifications->Get('subscribed') || $oTrigger->Get('subscription_policy') === SubscriptionPolicy::ForceAllChannels;
+			$aSubscribedActionsNotificationsByTrigger[$iTriggerId][$oSubscribedActionNotification->GetKey()] = $oLnkActionsNotifications->Get('subscribed') || $oTrigger->Get('subscription_policy') === SubscriptionPolicy::ForceAllChannels->value;
 		}
 
 		$oPage->AddTabContainer('NotificationsCenter', '', $oNotificationsPanel);
@@ -492,7 +492,7 @@ JS
 				throw new \Exception('Invalid trigger');
 			}
 			// Check the trigger subscription policy
-			if ($oTrigger->Get('subscription_policy') === SubscriptionPolicy::ForceAllChannels) {
+			if ($oTrigger->Get('subscription_policy') === SubscriptionPolicy::ForceAllChannels->value) {
 				throw new \Exception('You are not allowed to unsubscribe from this channel');
 			}
 			
@@ -502,7 +502,7 @@ JS
 				throw new \Exception('You are not subscribed to any channel');
 			}
 			// Check the trigger subscription policy and if we are subscribed to at least 1 channel if necessary
-			if($oTrigger->Get('subscription_policy') === SubscriptionPolicy::ForceAtLeastOneChannel) {
+			if($oTrigger->Get('subscription_policy') === SubscriptionPolicy::ForceAtLeastOneChannel->value) {
 				$oTotalSubscribedActionsNotificationsSet = NotificationsRepository::GetInstance()->SearchSubscriptionByTriggerContactAndSubscription($iTriggerId, \UserRights::GetContactId(), '1');
 				if (($oTotalSubscribedActionsNotificationsSet->Count() - $oSubscribedActionsNotificationsSet->Count()) === 0) {
 					throw new \Exception('You can\'t unsubscribe from this channel, you must be subscribed to at least one channel');
diff --git a/sources/Service/Notification/NotificationsService.php b/sources/Service/Notification/NotificationsService.php
index 8412a2dc6..4beecfc13 100644
--- a/sources/Service/Notification/NotificationsService.php
+++ b/sources/Service/Notification/NotificationsService.php
@@ -100,7 +100,7 @@ class NotificationsService {
 	public function IsSubscribed(Trigger $oTrigger, ActionNotification $oActionNotification, Contact $oRecipient): bool
 	{
 		// Check if the trigger subscription policy is 'force_all_channels'
-		if ($oTrigger->Get('subscription_policy') === SubscriptionPolicy::ForceAllChannels) {
+		if ($oTrigger->Get('subscription_policy') === SubscriptionPolicy::ForceAllChannels->value) {
 			return true;
 		}
 		// Check if the user is already subscribed to the action notification