Magento 2: Product qty box empty when edit product from cart in product detail page

If you got the qty box empty when you edit the product from the cart page, please follow the below instruction.

You need to override “vendor/magento/module-checkout/view/frontend/templates/cart/item/configure/updatecart.phtml” file in your theme

<vendername>/<themename>/Magento_Checkout/templates/cart/item/configure/updatecart.phtml

then just add below line in value

<?= $block->getProductDefaultQty() * 1 ?>

After making above changes QTY field code show will look like below:

<input type="number"
name="qty"
id="qty"
min="0"
value="<?= $block->getProductDefaultQty() * 1 ?>"
title="<?= $block->escapeHtmlAttr(__('Qty')) ?>"
class="input-text qty"
data-validate="<?= $block->escapeHtml(json_encode($block->getQuantityValidators())) ?>"/>

<input type="number"

name="qty"

id="qty"

min="0"

value="<?= $block->getProductDefaultQty() * 1 ?>"

title="<?= $block->escapeHtmlAttr(__('Qty')) ?>"

class="input-text qty"

data-validate="<?= $block->escapeHtml(json_encode($block->getQuantityValidators())) ?>"/>

Note: I have tried this in Magento 2.3.6 – Let us know if it works with the other versions as well.

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