Overview

Amazon's Buy Shipping is a built-in tool within Seller Central that allows merchants to purchase shipping labels, confirm shipments, and track deliveries directly from the platform. The feature is designed to protect seller performance metrics by matching orders with shipping methods that have a high probability of meeting the buyer's promised delivery date. For sellers who fulfill their own orders (FBM), understanding how Buy Shipping works is essential to maintaining strong account health.

Key Points / What Sellers Need to Know

• Metrics Protection — When you use Buy Shipping and a package arrives late, Amazon may not count that late delivery against your seller metrics, provided you shipped on time. This is one of the most significant advantages of the program.
• Transit Time Matching — Buy Shipping evaluates each carrier's estimated transit time (TT) against the order's promised delivery date to surface only those shipping methods likely to arrive on time.
• Ship Lane Calculations — Transit times are calculated based on ship lanes, which are defined by the origin and destination zip codes. For example, shipping from New York (10001) to Los Angeles (90001) constitutes a specific ship lane with its own transit time estimate.
• Individual and Bulk Labels — Sellers can purchase shipping labels one at a time or in bulk, making it practical for both low-volume and high-volume operations.
• Integrated Tracking — Shipments purchased through Buy Shipping are automatically confirmed and tracked within Seller Central, reducing manual data entry and the risk of missing confirmation deadlines.
• Trusted Carrier Network — Buy Shipping connects sellers with Amazon's vetted network of shipping carriers, providing competitive rates and reliable service.

How Buy Shipping Determines the Right Ship Method

When an order comes in, Buy Shipping examines three key factors: the carrier's stated transit time for the relevant ship lane, the date the seller plans to ship the package, and the delivery date promised to the buyer. The system cross-references these variables to present only shipping options that are likely to meet the delivery window. Transit time is the estimated number of days a carrier needs to deliver a package after picking it up from the seller, and this varies depending on the distance between origin and destination zip codes. By filtering out methods unlikely to arrive on time, Buy Shipping helps sellers avoid selecting a service level that would result in a late delivery.