That is done through hikashop and their ORDER_ADMIN_NOTIFICATION_SUBJECT email:
<?php
/**
* @package HikaShop for Joomla!
* @version 2.1.3
* @author hikashop.com
* @copyright (C) 2010-2013 HIKARI SOFTWARE. All rights reserved.
* @license GNU/GPLv3 http://www.gnu.org/licenses/gpl-3.0.html
*/
defined('_JEXEC') or die('Restricted access');
?>
<?php
$url = HIKASHOP_LIVE.'administrator/index.php?option=com_hikashop&ctrl=order&task=edit&order_id='.$data->order_id;
echo JText::sprintf('ORDER_STATUS_CHANGED',$data->mail_status)."\r\n\r\n".JText::sprintf('NOTIFICATION_OF_ORDER_ON_WEBSITE',$data->order_number,HIKASHOP_LIVE);
$currency = hikashop_get('class.currency');
echo "\r\n".JText::_('HIKASHOP_TOTAL').' : '.$currency->format($data->order_full_price,$data->order_currency_id);
echo "\r\n".str_replace('<br/>',"\r\n",JText::sprintf('ACCESS_ORDER_WITH_LINK',$url));
if($data->order_payment_method=='creditcard' && !empty($data->credit_card_info->cc_number)){
echo "\r\n".JText::_('CUSTOMER_PAID_WITH_CREDIT_CARD');
if(!empty($data->credit_card_info->cc_owner)){
echo "\r\n".JText::_('CREDIT_CARD_OWNER').' : '.$data->credit_card_info->cc_owner;
}
echo "\r\n".JText::_('END_OF_CREDIT_CARD_NUMBER').' : '.substr($data->credit_card_info->cc_number,8);
if(!empty($data->credit_card_info->cc_CCV)){
echo "\r\n".JText::_('CARD_VALIDATION_CODE').' : '.$data->credit_card_info->cc_CCV;
}
echo "\r\n".JText::_('CREDITCARD_WARNING');
}
$fieldsClass = hikashop_get('class.field');
$fields = $fieldsClass->getFields('frontcomp',$data,'order','');
foreach($fields as $fieldName => $oneExtraField) {
$fieldData = trim(@$data->$fieldName);
if(empty($fieldData)) continue;
echo "\r\n".$fieldsClass->trans($oneExtraField->field_realname).' : '.$fieldsClass->show($oneExtraField,$data->$fieldName);
}
?>