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