Listings Items API adds multi-marketplace support and July attribute and enumeration updates
From July 29 the Listings Items API accepts multiple marketplaceIds per request for seller accounts with store-level identifiers in responses, and from July 27 Amazon updates attribute usage and enumeration values across many product types in listing APIs and JSON feeds.
Read the official Amazon source01 · Source fact
What changed
From July 29 the Listings Items API accepts multiple marketplaceIds per request for seller accounts with store-level identifiers in responses, and from July 27 Amazon updates attribute usage and enumeration values across many product types in listing APIs and JSON feeds.
- Published
- Jul 15, 2026
- Effective
- 2026-07-27
- Deadline
- 2026-07-27
02 · Business impact
Who and what may be affected
- Operators
- Seller, Agency
- Surfaces
- Listings Items Api, Json Listings Feed
- Impact
- Operations, Compliance
- Settlement categories
- No direct payout category identified
03 · Next action
What to check
Update Listings Items API integrations for multi-marketplace responses and revalidate listing payloads against the July attribute and enumeration changes before resubmitting failed listings.