Magento 2 catalog_product_get_final_price event not working

Question

I have to set the product price to a custom value depends upon the customer. So I have written an event catalog_product_get_final_price and in the observer, I have set the custom price for the product.

below is my event xml file

    <?xml version="1.0"?>
<!--
/**
 * Pawan_Catalog Module 
 *
 * @category    Catalog
 * @package     Pawan_Catalog
 * @author      pawan
 *
 */
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="catalog_product_get_final_price">
        <observer name="setfinalprice" instance="Pawan\Catalog\Observer\FinalPricemanipulation" />
    </event>


</config>

My observer file is

<?php

/**
 * Pawan_Catalog Module 
 *
 * @category    checkout
 * @package     Pawan_Catalog
 * @author      pawan
 *
 */

namespace Pawan\Catalog\Observer;

use Magento\Framework\Event\ObserverInterface;
use Magento\Framework\Event\Observer as EventObserver;

class FinalPricemanipulation implements ObserverInterface {

    protected $scopeConfig;
    protected $request;

    public function __construct(
    \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig, \Magento\Framework\App\Request\Http $request
    ) {
        $this->scopeConfig = $scopeConfig;
        $this->request = $request;
    }

    /**
     * Execute observer
     *
     * @param \Magento\Framework\Event\Observer $observer
     * @return void
     */
    public function execute(\Magento\Framework\Event\Observer $observer) {
        $writer = new \Zend\Log\Writer\Stream(BP . '/var/log/observerslogs.log');
        $logger = new \Zend\Log\Logger();
        $logger->addWriter($writer);

        $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
        $product = $observer->getEvent()->getProduct();
        $pId = $product->getId();
        $qty = $observer->getEvent()->getQty();
        $actionName = $this->request->getFullActionName();
                $logger->info($actionName);
        if (empty($qty) || ($qty == 1)) {

            $productQuantity = $objectManager->get('Magento\CatalogInventory\Api\StockRegistryInterface')->getStockItem($pId);
//          $logger->info($product->getMeasurementSoldInSize() . "===" . $productQuantity->getMinSaleQty());
            if ($product->getMeasurementSoldInSize() > $productQuantity->getMinSaleQty()) {
                $finalPrice = $product->getData("final_price");
                $finalPrice *= $product->getMeasurementSoldInSize();
                $product->setFinalPrice($finalPrice);
            } elseif ($productQuantity->getMinSaleQty() > 1) {
                $actionName = $this->request->getFullActionName();
                $logger->info($actionName);
                if ($actionName == 'catalog-product-view') {
                    $finalPrice = $product->getData("final_price");
                    $finalPrice *= $productQuantity->getMinSaleQty();
                    $product->setFinalPrice($finalPrice);
                }
            }
        }
        return $this;
    }

}

but is not for view page it working when i add product to cart can any one tell why if anything i did wrong

Answer 1

If it will work then there might be some other module that have overridden final price using plugin

if it won't work on default magento then there are some issues in your observer code.

Observers like:-

<?php

namespace [Vendorname]\[Modulename]\Observer;

use Magento\Framework\Event\ObserverInterface;
use Magento\Framework\Event\Observer as EventObserver;

class FinalPricemanipulation implements ObserverInterface
{
public function execute(\Magento\Framework\Event\Observer $observer)
    {
        //logic
    }
}

Answer 2

Use catalog_product_load_after event instead of catalog_product_get_final_price for magento v2.4