Overview

Amazon has rolled out an estimated technician arrival feature to its Services API, making it possible for home‑service sellers to transmit a realistic arrival window to customers at checkout. The capability is live across every Amazon marketplace and can be integrated immediately, giving providers a new lever to cut down on no‑shows and improve the overall buying experience.

Key Points

• New API field — The serviceFulfillment endpoint now accepts an estimatedArrivalTime attribute that carries a start‑time and end‑time for the technician’s visit.
• Window‑based estimates — Rather than a single timestamp, sellers can send a two‑hour (or any length) window, such as “10:00 am – 12:00 pm,” which reflects real‑world travel variability.
• Universal rollout — The feature works in all Amazon marketplaces without any region‑specific toggles, so a single integration serves North America, Europe, Japan, and other markets.
• Production‑ready today — The enhancement is already in the live environment, allowing developers to push code changes and start delivering windows to shoppers right now.
• Appointment‑reduction impact — Early tests show that providing a clear window can lower missed‑appointment rates by up to 15 % for providers that adopt the field.
• Operational efficiency boost — Accurate windows enable technicians to schedule more jobs per day, potentially increasing daily revenue by 5‑10 % for well‑optimized fleets.

How Estimated Arrival Times Work

1. Add the window to the fulfillment request — When calling serviceFulfillment, include an estimatedArrivalTime object containing startTime and endTime in ISO‑8601 format. Example: { "estimatedArrivalTime": { "startTime": "2026-02-14T10:00:00Z", "endTime": "2026-02-14T12:00:00Z" } }
2. Calculate a realistic range — Pull data from dispatch software, current traffic APIs, and the technician’s existing schedule to generate a window that reflects travel time, expected job length, and buffer for unforeseen delays.