How can I change the attribute of a product in catalog_product_save_after event.

I am getting the product object. I set data in a particular attribute and set $product->save().

This stops everything, admin page doesn't open at all. I have to fire service php-fpm restart.

  • You should add your code in the question so that someone can analyse the issue more effectively. – Dinesh Yadav Jun 22 '18 at 11:27
  • The below ans is same like my code. – Avesh Naik Jun 22 '18 at 12:29

If you want to $productobj after saving product from backend then you can easily use catalog_product_save_after event.

Put this events.xml in below path


<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="catalog_product_save_after">
        <observer name="test_name" instance="YOUR_NAMESPACE\YOUR_MODULENAME\Observer\Productsaveafter" />

And put your Productsaveafter.php in below path




use Magento\Framework\Event\ObserverInterface;

class Productsaveafter implements ObserverInterface
    protected $_productloader;  

    public function __construct(
        \Magento\Catalog\Model\ProductFactory $_productloader

    ) {
        $this->_productloader = $_productloader;

    public function getLoadProduct($id)
        return $this->_productloader->create()->load($id);

    public function execute(\Magento\Framework\Event\Observer $observer)
        $value = 'Your value';
        $_product = $observer->getProduct();  // you will get product object
        $_productloader = $this->getLoadProduct($_product->getId()); // for sku
        $_productloader->setCustomattribute($value); // name of your custom attribute

  • Ok i will try this one – Avesh Naik Jun 22 '18 at 11:44
  • No not working "Gateway Timeout" – Avesh Naik Jun 22 '18 at 12:10
  • You are forgetting something. You are calling save method, so you are calling this observer again and again. – Avesh Naik Jun 22 '18 at 15:15

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