# Offer consistency and freshness across surfaces

> Price, availability, shipping, and return values show identical, current numbers across the product page, structured data, feed, and checkout, so an agent never arbitrates a conflict or quotes an offer you no longer honor.

<!-- Canonical: https://agentmint.net/signals/offer-consistency-freshness/ · Signal in the AgentMint.net Signals Database · Evidence: hypothesis (Low confidence) · Last verified 2026-07-08 · Evidence types are load-bearing: spec-fact | reported | hypothesis (no measured). -->

- **Affects (funnel stage):** Choice
- **Evidence:** hypothesis
- **Confidence:** Low
- **Impact:** 3/3
- **Status:** active
- **Last verified:** 2026-07-08

## Per-platform status

Undocumented platforms show "unknown" - honest unknowns, never invented.

| Platform | Status | Notes | Source |
| --- | --- | --- | --- |
| ChatGPT | unknown | Not documented by this platform. | - |
| Gemini / Google AI Mode | unknown | Not documented by this platform. | - |
| Perplexity | unknown | Not documented by this platform. | - |
| Copilot | unknown | Not documented by this platform. | - |
| Claude | unknown | Not documented by this platform. | - |

## Evidence and sources

- [Product data specification](https://support.google.com/merchants/answer/7052112) (2026-07-08)
- [Get started with the Agentic Commerce Protocol](https://developers.openai.com/commerce/guides/get-started) (2026-07-08)

## How to act on this

Drive price, availability, shipping, and return values from one source so all surfaces match, keep the feed's required attributes current, and put price and availability on a short TTL (or bypass the cache) so a stale offer never reaches an agent.

### Related checklist items
- [Run a live product feed carrying all required Merchant Center attributes.](https://agentmint.net/tools/agentic-readiness-checklist/#a-structured-data-04) (Readiness)
- [Populate availability in structured data and keep it truthful to the page.](https://agentmint.net/tools/agentic-readiness-checklist/#a-structured-data-02) (Readiness)
- [Keep inventory accurate and refreshed at the cadence agents expect.](https://agentmint.net/tools/agentic-readiness-checklist/#a-checkout-ops-02) (Readiness)
- [Enforce price parity across product page, feed, and structured data.](https://agentmint.net/tools/agentic-readiness-checklist/#a-checkout-ops-03) (Readiness)
- [Keep delivery and return terms consistent across prose, structured data, and feed.](https://agentmint.net/tools/agent-selection-checklist/#b-delivery-returns-08) (Selection)

### Handbook chapters
- [Information Density: Facts Per Token on Machine Surfaces](https://agentmint.net/handbook/information-density/)
- [Serving Agent Traffic Without Breaking Your Origin](https://agentmint.net/handbook/serving-agent-traffic/)

### Related signals
- [Offer markup completeness and truthfulness](https://agentmint.net/signals/offer-markup-completeness/)
- [Offer cost legibility](https://agentmint.net/signals/offer-cost-legibility/)
- [Origin serve-ability for agents](https://agentmint.net/signals/origin-serveability/)