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Editorial Team
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Asked: 2026-06-11T15:00:41+00:00

I would need to stop decreasing inventory while placing an order, I need to

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I would need to stop decreasing inventory while placing an order,
I need to do this activity only after successful payment.

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  1. Editorial Team

    Yes, We can disable this qty decrease pragmatically

    How ?

    Extend Mage_Checkout_Model_Type_Onepage and Rewrite the method saveOrder

    Changes

    before the following lines in the above method, will be around #740 to #742

        $service = Mage::getModel('sales/service_quote', $this->getQuote());
    $service->submitAll();

    Add

        $quote = $this->getQuote();
    # Ref: Mage_CatalogInventory_Model_Observer::subtractQuoteInventory
    $quote->setInventoryProcessed(true);

    This will inform Magento that dont process inventory for the quote, so it wont decrease the qty even if it is configured to do so.

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