protected function getDefaultCarrierShipMethod($order, $shippingAddress)
{
$shipping_method = $order->getShippingMethod();
$rate = $shippingAddress->getShippingRateByCode($shipping_method);
if ($rate) {
list($carrierCode, $method) = explode('_', $shipping_method, 2);
$magentoCarrierCode = $this->shipperDataHelper->mapToMagentoCarrierCode($rate->getCarrierType(), $carrierCode);
$shipping_method = $magentoCarrierCode . '_' . $method;
}
return $shipping_method;
}
