Signal
Market, language and currency eligibility
Whether the country you ship to, the language you sell in and the currency you price in fall inside what each engine currently serves, because a product outside that box is not ranked badly, it is not eligible at all.
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 | Supported | The feed carries target_countries in ISO 3166-1 alpha-2 and store_country, so a product is selectable only in the markets the feed declares. | Source (opens in new tab) · verified 2026-09-18 |
| Gemini / Google AI Mode | Partial | Google's AI performance insights cover Australia, Canada, India, New Zealand and the US, and English-language conversational shopping queries only, so the reporting surface is itself market-bound. | Source (opens in new tab) · verified 2026-09-18 |
| Perplexity | Unknown | Not documented by this platform. | - |
| Copilot | Supported | Microsoft states that only English-language merchants selling to US buyers in USD are eligible at this time. | Source (opens in new tab) · verified 2026-09-18 |
| Claude | Unknown | Not documented by this platform. | - |
Evidence and sources
This signal is typed spec-fact (Very high confidence).
- OpenAI product feed specification (opens in new tab) · read 2026-09-18
- Microsoft Advertising: agentic commerce (opens in new tab) · read 2026-09-18
How to act on this
Check the market box before you debug anything else. Confirm the countries your feed declares, the language your listings are written in and the currency you price in against what each engine says it serves today, and write the date beside the answer, because these boundaries move.
Handbook chapters
Notes
This is the cheapest signal to check and the one most likely to explain a total absence rather than a poor placing. Two engines document a hard market gate independently, and neither frames it as a ranking factor, because it is not one. A merchant outside the served market can do everything else on this site perfectly and still never appear.