I'm having trouble trying to figure out how to go about changing the shipping options when the quantity of a product reaches a certain number. I couldn't find this anyplace on the discussion forum, but I figured someone has run into this problem.
I'm trying to get USPS Flat Rate (in a medium box) be the only option to select once the quantity of an item is greater than 3 at checkout.
One of the biggest problems I'm running into is that I don't know how to target code for the two shipping options I have set. One being shipping via USPS small Flat Rate box and the other USPS medium Flat Rate box.
Any and all help is very appreciated.