---
title: "Google documents its EEA-only aggregator and supplier units"
url: https://surfil.com/news/search-central-eea-aggregator-features
section: news
language: en
published: 2026-09-12T00:00:00.000Z
modified: 2026-09-12T00:00:00.000Z
author: Adam Hafez
topics: ["Structured data", "Technical SEO", "SERP features"]
---

# Google documents its EEA-only aggregator and supplier units

## The short answer

Google's Search Central changelog logged an entry dated 8 September 2026: new documentation for regional search features called aggregator units, supplier units and structured data carousels. Aggregator and supplier units are EEA-only and cover hotels, flights, ground transportation, local businesses and products. Carousels also run in South Africa and Turkiye and require structured data markup to qualify.

## Key takeaways

- A Search Central changelog entry dated 8 September 2026 documents regional search features.
- Aggregator units and supplier units appear only in the European Economic Area, across hotel, flight, ground transportation, local business and product queries.
- Structured data carousels run in the EEA, South Africa and Turkiye, with the query types varying by region.
- Google states a site must implement structured data markup to be eligible for a carousel; the page does not list which schema types satisfy that requirement.
- Google says the documentation is meant to help publishers, businesses and aggregators understand eligibility criteria and how to participate.

The Search Central changelog entry dated 8 September 2026 adds documentation about regional
differences in Search experience, naming aggregator units, supplier units and carousels. Google says
it is meant to help publishers, businesses and aggregators learn about the regional features and
understand the eligibility criteria and how to participate.

## What the three formats are

**Aggregator unit.** Google's own description: "a unit that provides visibility for ecosystem
participants (aggregators) on the search results page." It appears only inside the European
Economic Area, on hotel, flight, ground transportation, local business and product queries.

**Supplier unit.** The counterpart aimed at direct suppliers rather than aggregators, using the
same wording pattern: "a unit that provides visibility for ecosystem participants (direct
suppliers) on the search results page." Same region, same five query types. The page also lists an ecosystem carousel, job sites and places
sites features and a South Africa badge.

**Structured data carousel.** Google calls it "a list-like rich result that people can scroll
horizontally to see entities from a given site," also known as a host carousel. This one has the
widest reach: the EEA (hotels, local businesses, things to do, products, ground transportation,
flights, vacation rentals), South Africa (hotels, things to do, flights, products, food delivery,
car hire, vacation rentals, ground transportation) and Turkiye (hotels, local businesses, vacation
rentals).

## What the docs do not say

Google states that a carousel requires structured data markup, without naming which schema types
satisfy the requirement on this particular page; it links out to the general
[carousel documentation](/topics/structured-data) instead of listing types inline. Aggregator and
supplier units appear on the page with a one-line description, the EEA and their query types,
plus a link to a separate page for each, which we did not review. For a
publisher or aggregator trying to qualify, the practical next step is the linked carousel
reference and existing [Merchant Center](/topics/technical-seo) or travel structured data guides,
not this changelog entry by itself.

## Why we care

This is a documentation update, not an algorithm change: the changelog entry names no ranking
change, no new markup requirement and no rollout date. It still matters because a site operating
in Europe, South Africa or Turkiye now has a citable Google source stating which query types and
regions those formats touch.

## Common questions

### What is an aggregator unit?

Google describes it as "a unit that provides visibility for ecosystem participants (aggregators) on the search results page," shown only in the European Economic Area for hotel, flight, ground transportation, local business and product queries.

### Is this new functionality or new documentation?

The changelog entry is documentation, not a feature launch. Google says it added documentation about regional differences in Search experience, including eligibility criteria and how to participate.

### Do these formats apply outside the EEA?

Aggregator and supplier units are EEA-only. Carousels run in the EEA plus South Africa and Turkiye, with the specific query types differing by region.

## Sources

1. [Search Central changelog: Added documentation about regional differences in Search experience](https://developers.google.com/search/updates) - Google Search Central (primary)
2. [Regional differences in Search experience](https://developers.google.com/search/docs/appearance/aggregator-features) - Google Search Central (primary)