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    Update product stock programmatically in magento2

    Updated 18 September 2023

    Here we learn how to update product stock programmatically in magento2

    Here we define function in helper file of module to update product stock and use this function where we want to update product stock.

    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($productId); // 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

    Thanks for reading the article šŸ™‚ , I hope you liked it. Also, do check out Magento 2 Google Shopping Feed extension which allows you to showcase your Magento 2 online storeā€™s products on Google using Shopping Feeds.

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  • Jeff
    Thanks for posting this
    Does it work with magento 2.4.2 ?
    • Neelesh Singh (Moderator)
      Hello There,
      Yes, it will work if MSI is not used. For any further queries please email us at [email protected] and we will get back to you accordingly.

      Thank You

  • Fabio Bozzo
    why do you save $product too?
  • Marc
    Can this be used with a .csv file containing “sku”,”price” ? Thanks! šŸ™‚
  • 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?
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