Overview

Amazon's Shipping Settings Automation (SSA) is a Seller Central feature designed to replace manual transit time calculations with data-driven delivery estimates. By leveraging real carrier performance data and your warehouse location, SSA generates more accurate delivery promises for customers — which can directly improve conversion rates and increase your chances of winning the Featured Offer.

Key Points / What Sellers Need to Know

• Automated transit time calculations — SSA uses actual carrier delivery performance data to set transit times automatically, eliminating the need for sellers to manually estimate and update shipping speeds across regions.
• More attractive delivery dates — Many sellers default to overly conservative transit times or limit fast delivery zones to avoid late shipments. SSA corrects this by calculating realistic delivery windows, making your listings more competitive.
• Account health protection — Amazon will suppress negative feedback related to late deliveries on SSA-enabled orders, provided you ship on time, include valid tracking, and use the same or faster shipping service than what SSA used for the delivery promise.
• Supports multiple shipping speeds — SSA covers standard shipping from both domestic and international warehouses, as well as one-day and two-day Premium Shipping from domestic locations.
• Works with existing carriers — You don't need to switch shipping providers. SSA calculates transit times based on the carriers and services you already use.

How Shipping Settings Automation Works

SSA pulls from two primary data points to calculate delivery dates: your ship-from warehouse location and up-to-date transit time data from the carriers you use. Amazon continuously tracks carrier delivery performance across routes, so the system reflects actual capabilities rather than static estimates. When a customer views your listing, the delivery promise they see is based on this real-world data rather than a manually entered number. This means delivery dates adjust automatically as carrier performance changes over time, keeping your promises accurate without any ongoing effort on your part.