Amazon updates listing attribute usage and enumeration values for April 2026
Effective April 27, Amazon updates required attribute usage and allowed enumeration values for multiple product types and marketplaces used by listing APIs and JSON feeds.
Read the official Amazon source01 · Source fact
What changed
Effective April 27, Amazon updates required attribute usage and allowed enumeration values for multiple product types and marketplaces used by listing APIs and JSON feeds.
- Published
- Apr 15, 2026
- Effective
- 2026-04-27
- Deadline
- 2026-04-27
02 · Business impact
Who and what may be affected
- Operators
- Seller, Agency
- Surfaces
- Listings Items Api, Json Listings Feed, Product Type Definitions Api
- Impact
- Operations, Compliance
- Settlement categories
- No direct payout category identified
03 · Next action
What to check
Compare affected product-type metadata with listing payload validation and update newly required attributes or removed enumeration values before resubmitting failed listings.
confirmed source relationshipLast reviewed Jul 13, 2026