Completely flexible shipping: Create consumer categories, product classes, and location-based prices. A postcode and area are used to define the areas. Names and meanings affect filter rates. Fast speeds, carriers 55+! The 4D box & stack algorithm predicts carrier speeds, determines origins and applies time-based rules. Advanced scripting features: Do you Have a completely special rule? Use our Macro editor to further configure your package, or write your rule down from scratch. Endless opportunities.