Um alte Bestellungen in Magento zu stornieren könnt ihr den folgenden php-code verwenden:

To cancel old orders in Magento, e.g. with state „pending“, „holded“ or „pending_payment“ you can use the following php-code:

    public function autocancelPendingOrders()
    {
        $orderCollection = Mage::getResourceModel('sales/order_collection');
        $orderCollection
            ->addFieldToFilter('state',
                array(
                    array('eq' => 'pending'),
                    array('eq' => 'holded'),
                    array('eq' => 'pending_payment')
                ));
        $orderCollection->addFieldToFilter('created_at', array(
                'lt' =>  new Zend_Db_Expr("DATE_ADD('".now()."', INTERVAL 2 HOUR)")))
            ->getSelect()
            ->order('entity_id')
//            ->limit(20)
            ;
        foreach($orderCollection->getItems() as $order)
        {
            $orderModel = Mage::getModel('sales/order');
            $orderModel->load($order['entity_id']);
            if($orderModel->getState() == 'holded') {
                if(!$orderModel->canUnhold()) {
                    continue;
                } else {
                    $orderModel->unhold();
                    $orderModel->setStatus('new');
                }
            }
            if(!$orderModel->canCancel()) {
                continue;
            }
            $orderModel->cancel();
            $orderModel->setStatus('canceled');
            $orderModel->save();
        }
    }