Hello DPer's I'm using 1.4.1.0 and having some difficulties with the shipping. Specifically, how do I configure the shipping so that usps small priority shipping is not an option if the order size is too large? For example, if someone orders three products, it will fit in the small priority flat rate box. However, if they order five products, it is too large to fit in the small rate box but it is still an option for the customer to select? I want the customer to be able to select the option if they order three (as an example) but not if they order five (it would require a medium box). Can anyone help me? Post here or contact me through PM