Apply coupon when number of items is 12

paulagottlieb.com/store/cards-barns
-- HikaShop version -- : 2.2.2 Starter
-- Joomla version -- : 2.5.16
-- PHP version -- : 5.3
-- Browser(s) name and version -- : Firefox 25
No error message.
I am very sorry to have posted this but I couldn't find the solution elesewhere. I did figure out how to make a coupon though. Our cards sell for $3.50 apiece but I want to offer a $6 coupon at checkout if the number of items is 12 or greater.

Thanks,

Mark

Hi,

You can create a coupon via the menu Order > Discounts, select "coupon" for the type " and set the minimum number of products to "12".