You may have noticed that the default “Quantity” or “Qty” to “Add to Cart” on product pages is 0 or zero. While the visitor can simply click “Add to Cart” to add 1 item of the product into the shopping cart, it would still create confusion. Some customers might think they had to manually update the quantity from 0 to 1 for the “Add to Cart” button to work (which is totally unnecessary) and be slightly annoyed because they *had to* do so. This is definitely not what we intended.
So how to change the default quantity on product pages to 1?
Many of the online answers involve editing one of the template files. It is not so any more with the newest versions of Magento. Tested on 1.6.1 and 1.6.2, you can simply change the default quantity by the following path in administrator panel:
System > Configuration > Inventory > Product Stock Options > Minimum Qty Allowed in Shopping Cart > Click “Add Minimum Qty” > Select “ALL GROUPS” and enter “1” in “Minimum Qty” > Click “Save Config“.
That’s it. You may probably need to refresh cache. And you would now see 1 as the default quantity on all your product pages. This is the update-proof solution.