minimum quantity of product to purchase

I Nicolas,
I have some products for that is need to select minimum quantity of product to purchase.

But I noted that if I select one piece only the ceckout process works the same and the customer can complete his purchase with a price set to "0".

Here an example
www.hidesign.it/test/en/select/product/s...d-1624/sedia-pantone

Hi,

I'm not able to add that product to the cart at all on your website. Is there something wrong ?

Sorry! You can add now!

www.hidesign.it/test/en/select/product/s...d-1624/sedia-pantone

Thank you...

Updating to the latest version will probably help as we changed the quantity restrictions system since the 1.5.4 release that you're using. Could you update ?