Overview

Amazon will enforce stricter attribute rules for product listings on every marketplace beginning September 28 2025. The changes affect any listing created or updated through the Selling Partner API (SP‑API) or the JSON LISTINGS FEED, and omissions will cause the submission to be rejected. Sellers who rely on automated feeds must adjust their integrations now to avoid inventory disruptions.

Key Points

• Required‑field shift — Attributes that were previously optional or merely recommended are being upgraded to “required,” so a missing field will trigger an API error.
• New enumeration options — Expanded dropdown lists for material, color, size and similar attributes give sellers finer‑grained descriptors, replacing work‑arounds like free‑text entries.
• Global rollout — The update rolls out simultaneously across North America, Europe, Brazil, Japan, Australia and all other Amazon marketplaces.
• API‑only scope — Manual entries in Seller Central and legacy XSD/XML feeds remain untouched; only SP‑API and JSON LISTINGS FEED submissions are validated against the new schema.
• Potential impact on bulk operations — High‑volume sellers using third‑party tools or custom scripts may see a spike in rejected listings if they do not incorporate the new fields.

What’s Changing

1. Attribute status upgrade — An attribute such as “Battery Life” for electronics, which was previously optional, will now be mandatory for the “Electronics > Portable Devices” product type. A listing that omits this field will return error 400 with a “Missing required attribute: batteryLife” message.
2. Expanded enumeration values – The “Material” attribute for “Home & Kitchen > Cookware” now includes new options like “Ceramic‑Coated Steel” and “Hard‑Anodized Aluminum.” Submitting “steel” alone will be flagged as invalid; the correct value must match one of the expanded list items.
3. Schema refresh via Product Type Definitions API – The endpoint /definitions/v2024-10-01/productTypes/{type} will return the updated JSON schema. For example, a request for will now list “Blade Material” as required and show the full set of acceptable values (e.g., “Stainless Steel,” “Carbon Steel”).