I've been working on a Magento website: satcogrowlight.com

I am very new to working with Magento in the back end.

My problem is that once I've added an item to my cart, I cannot change the quantity in the cart. I enter in the new quantity, click "Update Shopping Cart", the page refreshes, and everything remains the same.

I have no idea where to start troubleshooting. I haven't made any changes to the code, as far as I remember.


you have to include the form key,in cart.phtml.

<form method="post" action="<?php echo $this->getBaseUrl('checkout/cart/updatePost')?>">
         <input type="hidden" name="form_key" value="<?php echo Mage::getSingleton('core/session')->getFormKey(); ?>" >
  • 1
    This worked! Thank you so much. For future readers: The location of this file is /app/design/frontend/default/YOUR_THEME/template/checkout
    – Tara
    Jan 8 '15 at 15:22
  • So many templates to update, but it's a good thing to have the form key to prevent attacks.
    – DWils
    Jun 23 '15 at 23:15

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