Update product stock programmatically in magento2

Here we learn how to update product stock programmatically in magento2

Here we define function in helper file of module

namespace YourNameSpace\ModuleName\Helper;

use Magento\Framework\App\Filesystem\DirectoryList;

class Data extends \Magento\Framework\App\Helper\AbstractHelper
    protected $_product;

     * @var Magento\CatalogInventory\Api\StockStateInterface 
    protected $_stockStateInterface;

     * @var Magento\CatalogInventory\Api\StockRegistryInterface 
    protected $_stockRegistry;

    * @param Magento\Framework\App\Helper\Context $context
    * @param Magento\Catalog\Model\Product $product
    * @param Magento\CatalogInventory\Api\StockStateInterface $stockStateInterface,
    * @param Magento\CatalogInventory\Api\StockRegistryInterface $stockRegistry
    public function __construct(
        \Magento\Framework\App\Helper\Context $context,
        \Magento\Catalog\Model\Product $product,
        \Magento\CatalogInventory\Api\StockStateInterface $stockStateInterface,
        \Magento\CatalogInventory\Api\StockRegistryInterface $stockRegistry, 
    ) {
        $this->_product = $product;
        $this->_stockStateInterface = $stockStateInterface;
        $this->_stockRegistry = $stockRegistry;

     * For Update stock of product
     * @param int $productId which stock you want to update
     * @param array $stockData your updated data
     * @return void 
    public function updateProductStock($productId,$stockData) {
        $product=$this->_product->load($productId); //load product which you want to update stock
		$stockItem=$this->_stockRegistry->getStockItem($item['product_id']); // load stock of that product
		$stockItem->setData('is_in_stock',$stockData['is_in_stock']); //set updated data as your requirement
		$stockItem->setData('qty',$stockData['qty']); //set updated quantity 
		$stockItem->save(); //save stock of item
		$product->save(); //  also save product

Thanks 🙂

. . .

Comments (5)

Add Your Comment

  • Fabio Bozzo
    why do you save $product too?
  • Marc
    Can this be used with a .csv file containing “sku”,”price” ? Thanks! 🙂
  • Alex
    got it
    $item[‘product_id’] is product is

    Thanks for this post

  • Alex
    please let me know what is ‘$item’ here?
  • Jacco Amersfoort
    It doesn’t work for me. Adding ” MagentoCatalogInventoryApiStockStateInterface $stockStateInterface,” to the constructur parameters gives me the error “Argument 2 should be StockStateInterface, none given”. I tried it on a controller. Does it only work on Helpers?
  • css.php
    Hire Us!
    Brief us about your requirements and we'll get back to you.
    Woo! Hooy!
    We have just recieved your project brief and our expert will contact you shortly.
    Send Again