Product Repository Shows 'Requested product doesn't exist' After Setting is_in_stock = 0

Question

I Have Loaded A Simple Product Using Magento\Catalog\Model\ProductRepository And Changed Its Quantity To 1 And Stock Status (is_in_stock) To 0,

Using Function $productStock->setQuantityAndStockStatus(['qty' => $correctedStock, 'is_in_stock' => $isInStock]);

After This Am Not Able To Load The Product Programmatically , It Shows Following Error.

`1 exception(s): Exception #0 (Magento\Framework\Exception\NoSuchEntityException): Requested product doesn't exist

Using Magento CE 2.1.2

Answer 1

Go to admin > Stores > configuration > Catalog > Inventory > Stock Options

Set Display Out of Stock Products to NO

Answer 2

You can create a Helper class (as given below ) to update product inventory as you want .

Assume you are using a custom extension Company_MyModule

<?php
namespace Company\MyModule\Helper;

use Magento\Framework\App\Filesystem\DirectoryList;

class Data extends \Magento\Framework\App\Helper\AbstractHelper
{

    /**
     * @var Magento\Catalog\Api\ProductRepositoryInterface
     */
    protected $_productRepository;

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

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



    /**
    * @param Magento\Framework\App\Helper\Context $context
    * @param Magento\Catalog\Api\ProductRepositoryInterface $productRepository
    * @param Magento\CatalogInventory\Api\StockStateInterface $stockStateInterface,
    * @param Magento\CatalogInventory\Api\StockRegistryInterface $stockRegistry
    */
    public function __construct(
        \Magento\Framework\App\Helper\Context $context,
        \Magento\Catalog\Api\ProductRepositoryInterface $productRepository,
        \Magento\CatalogInventory\Api\StockStateInterface $stockStateInterface,
        \Magento\CatalogInventory\Api\StockRegistryInterface $stockRegistry    
    ) {
        $this->_productRepository = $productRepository;
        $this->_stockStateInterface = $stockStateInterface;
        $this->_stockRegistry = $stockRegistry;        
        parent::__construct($context);
    }

    /**
     * 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 = $this->_productRepository->getById($productId); //load product which you want to update stock
        $productSku = $product->getSku();
        $stockItem = $this->_stockRegistry->getStockItemBySku($productSku); // load stock of that product  by SKU                                       
        $stockItem->setIsInStock($stockData['is_in_stock']); //set updated data as your requirement
        $stockItem->setQty($stockData['qty']); //set updated quantity 
        $stockItem->setManageStock($stockData['manage_stock']);  
        $this->_stockRegistry->updateStockItemBySku($productSku,$stockItem);        
    }
}