diff --git a/CHANGELOG.md b/CHANGELOG.md
index e9e5464..c3c8a4b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,11 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
 ## Released
 
+## [1.3.3](https://github.com/kabisa/wuunder-webshopplugin-prestashop/releases/tag/1.3.3)
+
+### Added
+- Validation check if a parcelshop is selected whenever the wuunder parcelshop method is used.
+
 ## [1.3.2](https://github.com/kabisa/wuunder-webshopplugin-prestashop/releases/tag/1.3.2)
 
 ### Fixed
diff --git a/wuunderconnector/config.xml b/wuunderconnector/config.xml
index d31ac4c..dca0480 100644
--- a/wuunderconnector/config.xml
+++ b/wuunderconnector/config.xml
@@ -2,7 +2,7 @@
 <module>
     <name>wuunderconnector</name>
     <displayName><![CDATA[Wuunder shipping module]]></displayName>
-    <version><![CDATA[1.3.2]]></version>
+    <version><![CDATA[1.3.3]]></version>
     <description><![CDATA[Send and receive your shipments easily, personally and efficiently. You can ship via more then 23 carriers. Wuunder takes care of all your transport and warehouse solutions you need.]]></description>
     <author><![CDATA[Wuunder]]></author>
     <tab><![CDATA[shipping_logistics]]></tab>
diff --git a/wuunderconnector/controllers/admin/AdminWuunderConnector.php b/wuunderconnector/controllers/admin/AdminWuunderConnector.php
index 4366be8..63ca360 100644
--- a/wuunderconnector/controllers/admin/AdminWuunderConnector.php
+++ b/wuunderconnector/controllers/admin/AdminWuunderConnector.php
@@ -42,7 +42,7 @@ public function __construct()
         $this->logger->setFilename(_PS_ROOT_DIR_ . ((_PS_VERSION_ < '1.7') ? "/log/wuunder.log" : "/app/logs/wuunder.log"));
         $this->bootstrap = true;
         $this->override_folder = "";
-        $this->sourceObj = array("product" => "Prestashop extension", "version" => array("build" => "1.2.6", "plugin" => "1.0"));
+        $this->sourceObj = array("product" => "Prestashop extension", "version" => array("build" => "1.3.4", "plugin" => "1.0"));
     }
 
     private function setBookingToken($order_id, $booking_url, $booking_token)
@@ -272,7 +272,7 @@ private function buildWuunderData($order_info)
         $bookingConfig->setLength($product_length);
         $bookingConfig->setWidth($product_width);
         $bookingConfig->setHeight($product_height);
-        $bookingConfig->setWeight((int)$order_info['weight']);
+        $bookingConfig->setWeight((int)($order_info['weight'] * 1000));
         $bookingConfig->setCustomerReference($order_info['id_order']);
         $bookingConfig->setPreferredServiceLevel($preferredServiceLevel);
         $bookingConfig->setSource($this->sourceObj);
diff --git a/wuunderconnector/wuunderconnector.php b/wuunderconnector/wuunderconnector.php
index 543bb05..2735750 100644
--- a/wuunderconnector/wuunderconnector.php
+++ b/wuunderconnector/wuunderconnector.php
@@ -40,6 +40,7 @@ class WuunderConnector extends Module
     private $parcelshopcarrier;
 
     private $hooks = array(
+        'actionValidateStepComplete',
         'actionValidateOrder',
         'displayHeader',
         'displayFooter',
@@ -343,6 +344,20 @@ public function hookActionValidateOrder($params)
         $this->context->smarty->clearAssign('cookieParcelshopId');
     }
 
+    public function hookActionValidateStepComplete($params) {
+        if ($params['step_name'] === 'delivery') {
+            $carrier_id = $params['cart']->id_carrier;
+            if (Configuration::get('MYCARRIER1_CARRIER_ID') == $carrier_id) {
+                if(empty($this->context->cookie->parcelId)){
+                    $controller           = $this->context->controller;
+                    $controller->errors[] = $this->l('Please select a parcelshop');
+                    $params['completed']  = false;
+                }
+            }
+        }
+        return;
+    }
+
     public function parcelshop_urls()
     {
         $tmpEnvironment = new \Wuunder\Api\Environment((int) Configuration::get('testmode') === 1 ? 'staging' : 'production');