public function isCaptureOnShipment()
    {
        $isPaymentOnShipmentStored = $this->GetUserPaymentDataItem(self::PARAMETER_IS_PAYMENT_ON_SHIPMENT);
        if (false !== $isPaymentOnShipmentStored) {
            return '1' === $isPaymentOnShipmentStored;
        }

        $config = $this->getAmazonPaymentGroupConfig($this->getActivePortalId());

        return $config->isCaptureOnShipment();
    }