Ok. So I finally got to the point where I need to address this. I understand (basically) how this works. I will set a dropdown on the cart page to select either ground, next day, 2 day or 3 day UPS shipping. Then on the confirm page I will create a hidden form element, then in the eCart server behaviors create a session value. Where I'm confused is in regards to how this gets passed to the UPS system. In the eCart wizard it refers to it as the Service Type. Do I set the form values to Ground etc., or are there corresponding numeric values, like Ground = 0 etc. I don't see an existing element in either the eCart or UPS Result to bind this to. How do I pass the value to wherever the Service Type is tracked?