diff --git a/README.md b/README.md
index b2478d3..475ab54 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Wirecard Checkout Page extension for Magento
 
 [![License](https://img.shields.io/badge/license-GPLv2-blue.svg)](https://raw.githubusercontent.com/wirecard/Magento-WCP/master/LICENSE)
-[![Magento Community Edition 1.9.3.1](https://img.shields.io/badge/Magento_CE-v1.9.3.1-green.svg)](https://www.magento.com/)
+[![Magento Community Edition 1.9.3.4](https://img.shields.io/badge/Magento_CE-v1.9.3.4-green.svg)](https://www.magento.com/)
 [![PHP v5.6](https://img.shields.io/badge/php-v5.6-yellow.svg)](http://www.php.net)
 
 Wirecard Checkout Page extension for Magento. 
diff --git a/app/code/community/Wirecard/CheckoutPage/Block/Additional/Script.php b/app/code/community/Wirecard/CheckoutPage/Block/Additional/Script.php
new file mode 100644
index 0000000..21a25d3
--- /dev/null
+++ b/app/code/community/Wirecard/CheckoutPage/Block/Additional/Script.php
@@ -0,0 +1,57 @@
+<?php
+/**
+ * Shop System Plugins - Terms of Use
+ *
+ * The plugins offered are provided free of charge by Wirecard Central Eastern Europe GmbH
+ * (abbreviated to Wirecard CEE) and are explicitly not part of the Wirecard CEE range of
+ * products and services.
+ *
+ * They have been tested and approved for full functionality in the standard configuration
+ * (status on delivery) of the corresponding shop system. They are under General Public
+ * License Version 2 (GPLv2) and can be used, developed and passed on to third parties under
+ * the same terms.
+ *
+ * However, Wirecard CEE does not provide any guarantee or accept any liability for any errors
+ * occurring when used in an enhanced, customized shop system configuration.
+ *
+ * Operation in an enhanced, customized configuration is at your own risk and requires a
+ * comprehensive test phase by the user of the plugin.
+ *
+ * Customers use the plugins at their own risk. Wirecard CEE does not guarantee their full
+ * functionality neither does Wirecard CEE assume liability for any disadvantages related to
+ * the use of the plugins. Additionally, Wirecard CEE does not guarantee the full functionality
+ * for customized shop systems or installed plugins of other vendors of plugins within the same
+ * shop system.
+ *
+ * Customers are responsible for testing the plugin's functionality before starting productive
+ * operation.
+ *
+ * By installing the plugin into the shop system the customer agrees to these terms of use.
+ * Please do not use the plugin if you do not agree to these terms of use!
+ */
+
+class Wirecard_CheckoutPage_Block_Additional_Script extends Mage_Core_Block_Template
+{
+
+    protected function _construct()
+    {
+        parent::_construct();
+        $this->setTemplate('wirecard/checkoutpage/additional/invoice.phtml');
+    }
+
+
+
+    public function getConsumerDeviceId() {
+        $session = Mage::getModel('customer/session');
+
+        if (strlen($session->getData('wirecard_cp_consumerDeviceId'))) {
+            return $session->getData('wirecard_cp_consumerDeviceId');
+        }
+        else {
+            $timestamp = microtime();
+            $consumerDeviceId = md5(Mage::helper('wirecard_checkoutpage')->getConfigData('settings/customer_id') . "_" . $timestamp);
+            $session->setData('wirecard_cp_consumerDeviceId', $consumerDeviceId);
+            return $consumerDeviceId;
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/code/community/Wirecard/CheckoutPage/Model/Abstract.php b/app/code/community/Wirecard/CheckoutPage/Model/Abstract.php
index 80808b4..1223b2d 100644
--- a/app/code/community/Wirecard/CheckoutPage/Model/Abstract.php
+++ b/app/code/community/Wirecard/CheckoutPage/Model/Abstract.php
@@ -117,6 +117,7 @@ public function initPayment() {
 		$order = $this->getOrder();
 		/** @var Wirecard_CheckoutPage_Helper_Data $helper */
 		$helper = Mage::helper( 'wirecard_checkoutpage' );
+        $session = Mage::getModel('customer/session');
 
 		$precision = 2;
 
@@ -153,6 +154,11 @@ public function initPayment() {
 		     ->createConsumerMerchantCrmId( $this->getOrder()->getCustomerEmail() )
 		     ->setConsumerData( $this->_getConsumerData() );
 
+        if (strlen($session->getData('wirecard_cp_consumerDeviceId'))) {
+            $init->consumerDeviceId = $session->getData('wirecard_cp_consumerDeviceId');
+            $session->unsetData('wirecard_cp_consumerDeviceId');
+        }
+
         if ($paymenttype == WirecardCEE_Stdlib_PaymentTypeAbstract::MASTERPASS) {
             $init->setShippingProfile('NO_SHIPPING');
         }
diff --git a/app/code/community/Wirecard/CheckoutPage/etc/config.xml b/app/code/community/Wirecard/CheckoutPage/etc/config.xml
index df725bf..d4fe205 100644
--- a/app/code/community/Wirecard/CheckoutPage/etc/config.xml
+++ b/app/code/community/Wirecard/CheckoutPage/etc/config.xml
@@ -34,7 +34,7 @@
 <config>
     <modules>
         <wirecard_checkoutpage>
-            <version>4.2.0</version>
+            <version>4.2.1</version>
         </wirecard_checkoutpage>
     </modules>
     <global>
diff --git a/app/design/frontend/base/default/layout/wirecard_checkoutpage.xml b/app/design/frontend/base/default/layout/wirecard_checkoutpage.xml
index 80e6847..fcf5c03 100644
--- a/app/design/frontend/base/default/layout/wirecard_checkoutpage.xml
+++ b/app/design/frontend/base/default/layout/wirecard_checkoutpage.xml
@@ -86,5 +86,11 @@
                    template="wirecard/checkoutpage/return.phtml"/>
         </reference>
     </wirecard_checkoutpage_processing_return>
+    <checkout_onepage_index>
+        <reference name="before_body_end">
+            <block type="wirecard_checkoutpage/additional_script" name="wirecard_checkoutpage_page_rp_js"
+                   template="wirecard/checkoutpage/additional/script.phtml"/>
+        </reference>
+    </checkout_onepage_index>
 
 </layout>
diff --git a/app/design/frontend/base/default/template/wirecard/checkoutpage/additional/script.phtml b/app/design/frontend/base/default/template/wirecard/checkoutpage/additional/script.phtml
new file mode 100644
index 0000000..f43cf58
--- /dev/null
+++ b/app/design/frontend/base/default/template/wirecard/checkoutpage/additional/script.phtml
@@ -0,0 +1,14 @@
+<?php if ($this->getConsumerDeviceId()) { ?>
+<script language="JavaScript">
+    var di = {t:'<?php echo $this->getConsumerDeviceId(); ?>',v:'WDWL',l:'Checkout'};
+</script>
+<script type="text/javascript" src="//d.ratepay.com/<?php echo $this->getConsumerDeviceId(); ?>/di.js"></script>
+<noscript>
+    <link rel="stylesheet" type="text/css" href="//d.ratepay.com/di.css?t=<?php echo $this->getConsumerDeviceId(); ?>&v=WDWL&l=Checkout">
+</noscript>
+<object type="application/x-shockwave-flash" data="//d.ratepay.com/WDWL/c.swf" width="0" height="0">
+    <param name="movie" value="//d.ratepay.com/WDWL/c.swf" />
+    <param name="flashvars" value="t=<?php echo $this->getConsumerDeviceId(); ?>&v=WDWL"/>
+    <param name="AllowScriptAccess" value="always"/>
+</object>
+<?php } ?>
\ No newline at end of file