I have created custom column in sales_order_item table, I am trying to save product custom field data to sales_order_item custom filed. But I am unable to save.

tried the way to create field as below:

<?xml version="1.0"?>
<schema xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Setup/Declaration/Schema/etc/schema.xsd">
    <table name="sales_order_item" resource="sales" engine="innodb" comment="Sales Order Item">
        <column xsi:type="varchar" name="custom_message"   nullable="true" comment="Custom Message"/>

Any suggestions to do?

2 Answers 2


Solved my self by adding below code.


<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Quote\Model\Quote\Item\ToOrderItem">
        <plugin name="vlc_quote_to_order_item" type="ABCSolutions\SalesOrder\Model\Plugin\Quote\QuoteToOrderItem"/>


and save the custom field in the plugin information like below.

namespace ABCSolutions\SalesOrder\Model\Plugin\Quote;

use Closure;
use Magento\Framework\App\ObjectManager;

class QuoteToOrderItem

     * @param \Magento\Quote\Model\Quote\Item\ToOrderItem $subject
     * @param callable $proceed
     * @param \Magento\Quote\Model\Quote\Item\AbstractItem $item
     * @param array $additional
     * @return \Magento\Sales\Model\Order\Item
     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
    public function aroundConvert(
        \Magento\Quote\Model\Quote\Item\ToOrderItem $subject,
        Closure $proceed,
        \Magento\Quote\Model\Quote\Item\AbstractItem $item,
        $additional = []
    ) {
        /** @var $orderItem \Magento\Sales\Model\Order\Item */
        $orderItem = $proceed($item, $additional);

        $objectManager = ObjectManager::getInstance();
        $_product = $objectManager->create('Magento\Catalog\Model\Product')->load($item->getProduct()->getId());

        if($_product->getStockMessage() != "In Stock" && $_product->getStockMessage() != "Out of Stock" && $_product->getStockMessage() != "" && $_product->getStockMessage() != null)

        return $orderItem;


and finally convert the quote to order item data using fieldset.xml.

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:DataObject/etc/fieldset.xsd">
    <scope id="global">
        <fieldset id="quote_convert_item">
            <field name="stock_message">
                <aspect name="to_order_item" />

Just add the ->setCustomMessage($your_value) in your sales order item save method ?

You might need to use a preference on the class where the save is located and add the set call in the inside.

  • Can we have brief ?
    – Bojjaiah
    Sep 23, 2020 at 15:23

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