I'm using the USPS Shipping plugin to calculate shipping in my store. We use USPS Flat Rate Boxes to ship and most products fit in those boxes. In order to pull the correct shipping rates during checkout I have to set the container to "Flat Rate Box" in the shipping extension settings.
This works great, except we have couple products that do not fit in a flat rate box and need special packaging. When I try to add one of these products to the cart I get an error stating:
Store (Shipping): The entered length must be less than or equal to 11.00000 inches.
Is it possible to use the USPS Shipping extension but set a custom shipping option for the individual products that need a custom option?
So far I have been unable to find a solution.