One of our customers who buy 12 or more comic books.
We created a code snippet as below that enables to show/hide Free Shipping based on item count for domestic shipment:
In the above code, alter the number in the variable ($minimum_number_of_item = 12;) to offer free shipping.
Also alter the variable for country code ($shop_country = ‘AU’;) as applicable.
Here are two screenshots to show how the snippet works:
