Is there any way to store checkout custom field data to checkout session? If possible how can I retrieve data?

Created an event

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="checkout_onepage_controller_success_action">
        <observer name="checkout_onepage_observer" instance="Mageplaza\HelloWorld\Observer\TestObserver" />

Observer code-

    namespace Oye\Deliverydate\Model\Observer;
    use Magento\Framework\Event\Observer as EventObserver;
    use Magento\Framework\Event\ObserverInterface;

     * Class SaveDeliveryDateToOrderObserver
     * @package Oye\Deliverydate\Model\Observer
    class SaveDeliveryDateToOrderObserver implements ObserverInterface
         * @var \Magento\Framework\ObjectManagerInterface
        protected $_objectManager;

         * @param \Magento\Framework\ObjectManagerInterface $objectmanager
        public function __construct(\Magento\Framework\ObjectManagerInterface $objectmanager)
            $this->_objectManager = $objectmanager;

         * @param EventObserver $observer
         * @return $this
        public function execute(EventObserver $observer)
            $order = $observer->getOrder();
            $quoteRepository = $this->_objectManager->create('Magento\Quote\Model\QuoteRepository');
            $quote = $quoteRepository->get($order->getQuoteId());
            $order->setDeliveryDate( $quote->getDeliveryDate() );
            //echo $quote->getDeliveryDate();
           // exit();



In the observer last line I tried to echo deliverydate custom field value using echo $quote->getDeliveryDate(); but not getting that value. Can I use session to store these custom checkout field value?

  • give more details at which location (model/controller/block) you are and what you try to save in session. Oct 23, 2018 at 7:29
  • If you have captche the custom field data at Magento checkout page then it is too tough to set save the data at session attribute
    – Amit Bera
    Oct 23, 2018 at 8:02
  • Added More Details please check
    – Ragesh VP
    Oct 23, 2018 at 8:42
  • $quote->getDeliveryDate() will not show anything unless you have saved Delivery Date in quote table. Oct 23, 2018 at 8:48
  • saved in quote table also
    – Ragesh VP
    Oct 23, 2018 at 8:49

2 Answers 2

protected $_checkoutSession;
public function __construct(
    public function __construct(
    \Magento\Checkout\Model\Session $checkoutSession
) {

    $this->_checkoutSession = $checkoutSession;

public function getCheckoutSession() 
    return $this->_checkoutSession;

You set a value :


You get a value :

$this->getCheckoutSession()->getVarValue(); //someValueHere

Then you unset the value :


To know about use of checkout session you should check below link -


for more specific answer please share the exact event or requirement when you want to use checkout session.

  • I added a custom field in magento 2 checkout page and data saved in quote table.How can I store these data in a custom table after checkout success??
    – Ragesh VP
    Oct 23, 2018 at 7:29
  • you need to use any event observer in your module after order success like sales_order_place_after or checkout_submit_all_after and then there you can save value in your custom table. Oct 23, 2018 at 7:35
  • for your help check this link Oct 23, 2018 at 7:35

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