I have configurable products and its child items in Magento 2.4 admin panel I have 3 child items for one configurable parent. If I set out of stock for 2 items and save then parent would be in in stock. If I save child items with out of stock then when I check status of parent stock status it automatically stock to out of stock because all child items are out of stock so parent automatically become out of stock so I need to check the which function doing this stuff ?

I looked at into files save() function is the responsible into below file location to doing above stuff ?


  • can you specify what actual you are looking? Commented Jul 29, 2021 at 4:36
  • @DhirenVasoya I want to put my custom code over there so I am finding that function Commented Jul 29, 2021 at 14:49

1 Answer 1


Magento has observer named SaveInventoryDataObserver under vendor\magento\module-catalog-inventory\Observer\SaveInventoryDataObserver.php

In execute function of this observer, it triggers $this->processParents($product); which process stock data for parent products.

private function processParents(Product $product)
    foreach ($this->parentItemProcessorPool as $processor) {

As you can see in the magento-configurable-product/etc/di.xml

<type name="Magento\CatalogInventory\Observer\SaveInventoryDataObserver">
            <argument name="parentItemProcessorPool" xsi:type="array">
                <item name="configurable" xsi:type="object"> Magento\ConfigurableProduct\Model\Inventory\ParentItemProcessor</item>

this will further hit the magento-configurable-product/Model/Inventory/ParentItemProcessor.php

This class has below function processStockForParent which might be responsible for this(parent stock status it automatically stock to out of stock).

private function processStockForParent(int $productId)
        $criteria = $this->criteriaInterfaceFactory->create();

        $stockItemCollection = $this->stockItemRepository->getList($criteria);
        $allItems = $stockItemCollection->getItems();
        if (empty($allItems)) {
        $parentStockItem = array_shift($allItems);

        $childrenIds = $this->configurableType->getChildrenIds($productId);
        $stockItemCollection = $this->stockItemRepository->getList($criteria);
        $allItems = $stockItemCollection->getItems();

        $childrenIsInStock = false;

        foreach ($allItems as $childItem) {
            if ($childItem->getIsInStock() === true) {
                $childrenIsInStock = true;

        if ($this->isNeedToUpdateParent($parentStockItem, $childrenIsInStock)) {

For more information refer this commit - https://github.com/magento/magento2/commit/a52d069900777c291d27b2e20c122970b7aaecca

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