Amazon updates listing attribute usage and enumeration values for May 2026
Effective May 25, Amazon updates attribute usage and allowed enumeration values across multiple product types and marketplaces, affecting listing create and edit payloads.
Read the official Amazon source01 · Source fact
What changed
Effective May 25, Amazon updates attribute usage and allowed enumeration values across multiple product types and marketplaces, affecting listing create and edit payloads.
- Published
- May 6, 2026
- Effective
- 2026-05-25
- Deadline
- 2026-05-25
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
Refresh Product Type Definitions metadata, compare required fields and accepted values, and update Listings Items API or JSON feed validation for affected product types.
confirmed source relationshipLast reviewed Jul 13, 2026