How to add a Custom Column to the Products Grid of Magento 2

In Magento, grids play a vital role when it comes to displaying data in an efficient way. This kind of grid is responsible for listing database items to display in a managed way. Also, it helps to sort or updating data items quickly as per the requirements of the admin. There are many default grids available in Magento 2 like product grid, order grid, review grid etc. But sometimes you require to have a custom column or parameter to make things easy for you.
Also, Magento allows you to quickly add a column to the product grid if a value that you want to display in the column is a product attribute using products grid toolbar under Columns control. Moreover, to personalized grid elements, you just check/uncheck items. But what if you want to display custom values that aren’t available as a product attribute you need to manually code for it.
Here is a small piece of code to do the same.
Firstly, create product_listing.xml file at this location.
app\code\Vendor\Extension\view\adminhtml\ui_component

<?xml version="1.0" encoding="utf-8"?>
<listing xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Ui:etc/ui_configuration.xsd">
 <columns name="product_columns">
        <column name="manage_stock" component="Magento_Ui/js/grid/columns/select" sortOrder="76">
            <settings>
                <addField>true</addField>
                <options class="Magento\Config\Model\Config\Source\Yesno"/>
                <filter>select</filter>
                <dataType>select</dataType>
                <sortable>false</sortable>
                <label translate="true">Manage Stock</label>
            </settings>
        </column>
    </columns>
    </listing>

After that we need to override ProductDataProvider by creating di.xml file in below folder.
app\code\Vendor\Extension\etc\adminhtml

<?xml version="1.0" encoding="utf-8" ?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
 <type name="Magento\Catalog\Ui\DataProvider\Product\ProductDataProvider">
        <arguments>
            <argument name="addFieldStrategies" xsi:type="array">
                <item name="manage_stock" xsi:type="object">Vendor\Extension\Ui\DataProvider\Product\Addstockstatus</item>
            </argument>
        </arguments>
    </type>
</config>

Next, we need to create Addstockstatus.php file inside below folder along with this bottom code.
app\code\Vendor\Extension\Ui\DataProvider\Product

<?php
namespace Vendor\Extension\Ui\DataProvider\Product;
class Addstockstatus implements \Magento\Ui\DataProvider\AddFieldToCollectionInterface
{
 public function addField(\Magento\Framework\Data\Collection $collection, $field, $alias = null)
 {
        $collection->joinField('manage_stock', 'cataloginventory_stock_item', 'manage_stock', 'product_id=entity_id', null, 'left');
 
 }
}

Lastly, don’t forget to clean cache using below command

php bin/magento cache:clean

That’s it! Now you can see a new column added to grid from your Magento 2 backend. Also, you are free to play and manipulate this according to your need for adding one or more elements to the grid.
Let us know if you are facing an issue while implementing using this code by commenting below.
Happy Coding!