Create unique functions, even if it is not easy

A regular courier won't take two tonnes of bricks, so most building-materials e-shops work out the delivery price only after the order has been sent. Tomáš Bukovský of the Pecka Design agency shows how they built a calculation for the Baushop e-shop that offers the cheapest delivery before the customer submits the order. You'll learn what data the calculation needs, why the postcode beat geolocation, how many hours the feature took and what it did to checkout drop-off, phone orders and revenue.