What commerce operators should check this week.

A free, source-backed operating brief. This issue contains only reviewed changes with a concrete audience and action; empty sections are stated instead of filled with unverified news.

01 · High-impact changes

Changes worth opening

Report SchemaJul 15, 2026confirmed

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.

PolicyJul 1, 2026confirmed

Amazon changes EU FBM rules, listing titles and External Fulfillment shipment status

Amazon's announcement combines new EU merchant-fulfilled performance rules, a July 27 split-title schema for non-media listings, and an ACCEPTED initial status for External Fulfillment shipments ahead of CREATED deprecation.

02 · Fees, payouts and refunds

Settlement-adjacent changes

No reviewed signal in this issue names a payout or report category.

03 · What to check this week

Concrete next actions

Amazon
Update Listings Items API integrations for multi-marketplace responses and revalidate listing payloads against the July attribute and enumeration changes before resubmitting failed listings.View reasoning →
Amazon
Review EU FBM handling-time workflows, update listing title payloads for the split schema by July 27, and make External Fulfillment polling handle ACCEPTED before CREATED is retired.View reasoning →

04 · Upcoming deadlines

Changes with a clock

2026-07-27Listings Items API adds multi-marketplace support and July attribute and enumeration updates 2026-07-27Amazon changes EU FBM rules, listing titles and External Fulfillment shipment status

05 · Report format and operations

Fields and workflows changing

AmazonListings Items API adds multi-marketplace support and July attribute and enumeration updates

06 · Original sources

Verify at the source

Listings Items API adds multi-marketplace support and July attribute and enumeration updatesdeveloper-docs.amazon ↗Amazon changes EU FBM rules, listing titles and External Fulfillment shipment statusdeveloper-docs.amazon ↗

Get the free Sumhound commerce briefing

One source-backed weekly email for the platforms you choose. Confirm by email; unsubscribe at any time. The public archive and analyzers remain free with no signup.