Is it possible to alter the origination zipcode? I'm guessing that live shipping rates are calculated by taking the store zipcode (in store settings) and the customer zipcode plus the product weight.
This works great if the store ships from a single location. In our case, the product will ship from multiple vendors scattered around the country. Is it possible to tell FoxyCart on a per order (better yet...per product) basis what the origination zipcode is? This would involve overriding the default store zipcode with a passed in value.