Signal
Conversational product attributes
Whether your Merchant Center feed carries Google's six optional conversational attributes, a field set added for AI answer surfaces rather than for ads.
Per-platform status
Where a platform documents relevant behavior, its status and source are shown. Undocumented platforms show "unknown" - honest unknowns, never invented.
| Platform | Status | Notes | Source |
|---|---|---|---|
| ChatGPT | Unknown | Not documented by this platform. | - |
| Gemini / Google AI Mode | Supported | Google documents six optional attributes (question_and_answer, document_link, related_product, item_group_title, variant_option, popularity_rank) designed to complement the primary product data specification. The page names AI Mode in Search, not the Gemini app. | Source (opens in new tab) · verified 2026-09-18 |
| Perplexity | Unknown | Not documented by this platform. | - |
| Copilot | Unknown | Not documented by this platform. | - |
| Claude | Unknown | Not documented by this platform. | - |
Evidence and sources
This signal is typed spec-fact (Very high confidence).
How to act on this
Add the attributes you can populate truthfully from data you already hold. related_product and variant_option let an agent see substitutes and options it would otherwise have to infer, popularity_rank hands it an in-catalog preference signal, and question_and_answer puts answers in the feed rather than in a widget an agent cannot reach.
Handbook chapters
Notes
Google reports that in testing with lululemon, conversational attributes submitted by the brand were incorporated 50% of the time in relevant AI Mode product recommendations. That figure is first-party and self-reported with no methodology disclosed, and it describes one named test rather than a published study.