diff --git a/common/components/Helper.php b/common/components/Helper.php
index fee3699..f09b510 100644
--- a/common/components/Helper.php
+++ b/common/components/Helper.php
@@ -404,6 +404,10 @@ class Helper {
         return \Yii::$app->params['group_training.url'];
     }
 
+    public static function getGroupTrainingRegistrationCancelLimitMinutes(){
+        return \Yii::$app->params['group_training.registration.cancel.limit.minutes'];
+    }
+
 	public static function getRealUserIp() {
 		$client = @$_SERVER ['HTTP_CLIENT_IP'];
 		$forward = @$_SERVER ['HTTP_X_FORWARDED_FOR'];
diff --git a/common/config/params.php b/common/config/params.php
index ca98fd8..25c7aea 100644
--- a/common/config/params.php
+++ b/common/config/params.php
@@ -65,5 +65,6 @@ return [
     'warn_ticket_expire_in_days_count' => 3,
     'warn_ticket_expire_in_usage_count' => 3,
     'inventory.products.only.active' => true,
-    'group_training.url' => 'https://fitnessadmin.hu'
+    'group_training.url' => 'https://fitnessadmin.hu',
+    'group_training.registration.cancel.limit.minutes' => 60
 ];
diff --git a/common/manager/EventRegistrationManager.php b/common/manager/EventRegistrationManager.php
index c55c095..2a18368 100644
--- a/common/manager/EventRegistrationManager.php
+++ b/common/manager/EventRegistrationManager.php
@@ -2,6 +2,7 @@
 
 namespace common\manager;
 
+use common\components\Helper;
 use common\models\Card;
 use common\models\CardEventRegistrationForm;
 use common\models\Customer;
@@ -246,7 +247,7 @@ class EventRegistrationManager extends BaseObject
 
         if ($reason != EventRegistration::CANCEL_REASON_CUSTOMER) {
             $timeUntilEventStart = $event->start - $now;
-            if ($timeUntilEventStart < 30 * 60) {
+            if ($timeUntilEventStart < Helper::getGroupTrainingRegistrationCancelLimitMinutes() * 60) {
                 throw new BadRequestHttpException('The reservation is already deleted', self::CANCEL_TIME_LIMIT_REACHED);
             }
         }