Overview

Amazon has begun Phase 3 of its structured‑data rollout, adding a fresh set of XML Schema Definition (XSD) files for a broader range of product categories. The new schemas, which went live this month across all Amazon marketplaces, require sellers to transmit core attributes—such as dimensions, material composition, and safety certifications—in a machine‑readable format rather than in free‑form bullet text. This shift is intended to sharpen search relevance, present shoppers with comparable spec boxes, and give listings that adopt the format a visibility edge.

Key Points

• Phase 3 activation — The latest XSD collection is now active on every Amazon marketplace, introducing 12 additional product types, including “Pet Supplies,” “Industrial & Scientific,” and “Office Products.”
• Structured attribute requirement — Critical fields like size, material, and certification must be supplied through the new XSD files, eliminating reliance on unstructured bullet points.
• Version‑controlled templates — Each category now ships with a uniquely versioned schema (for example, pet_supplies_v3.xsd) that sellers must reference when building inventory feeds.
• Strict validation — Amazon’s feed engine will reject any submission that lacks a mandatory element defined in the schema, returning clear error codes that pinpoint the missing tag.
• Search algorithm boost — Internal testing shows that listings with complete structured data receive higher priority in “Top‑Rated” and “Best Match” rankings.
• Compliance deadline — All existing listings must be converted to the new schema by October 31 2024; after that date Amazon will automatically retire the legacy bullet‑only format.

How the New XSD Framework Works

1. Retrieve the correct XSD file — Log into Seller Central, go to the “Product Type Definitions” section, and download the schema that matches your category (e.g., office_products_v3.xsd). The file enumerates every required and optional element for that product type.