Devryno Merchant Feed Audit - example mismatch cases

These are synthetic examples, not customer data. They are shaped from recurring public merchant/feed debugging patterns so a buyer can quickly understand what the paid audit is trying to catch.

Why this brief exists:
- Public Shopify/GMC discussions repeatedly ask where to look first when Merchant Center says price or availability mismatch.
- A recent Shopify Community reply about a local mismatch-checking tool also noted that real-world examples make the value easier to evaluate.
- Devryno keeps the examples explicit instead of asking someone to pay before they understand the output.

Case 1 - parent product URL instead of variant URL
- Feed row: /products/tea?variant=small, price 19.99 USD, in stock.
- Landing page crawled: /products/tea defaults to the large variant at 24.99 USD.
- Likely audit signal: visible price and JSON-LD Offer price disagree with feed price.
- Fix direction: submit the exact variant URL or make the default page state match the submitted row.

Case 2 - sale price updated in the theme, feed still has old regular price
- Feed row: 29.99 USD.
- Product page: JSON-LD and visible price show 24.99 USD after a sale/promo app update.
- Likely audit signal: feed price does not match JSON-LD/Open Graph/visible price.
- Fix direction: sync the feed after price rules, sale fields, or discount app changes.

Case 3 - currency/market redirect changes the crawler-visible price
- Feed row: 19.99 USD.
- Anonymous public page redirects or renders EUR market data: 18.50 EUR.
- Likely audit signal: page currency differs from feed currency; Open Graph or visible text may disagree.
- Fix direction: submit market-specific URLs or ensure crawler-visible currency matches the feed target country.

Case 4 - availability text and structured data disagree
- Feed row: in_stock.
- Page: visible page says sold out, but Product/Offer JSON-LD still says InStock.
- Likely audit signal: availability conflict across feed, visible state, and schema.
- Fix direction: update theme/app structured data when inventory state changes.

Case 5 - subscription/default price widget confuses the first visible price
- Feed row: one-time purchase price 24.99 USD.
- Product page: first visible price is subscription/discounted price 19.99 USD.
- Likely audit signal: visible price candidate differs from feed and JSON-LD offer price.
- Fix direction: make one-time price and subscription price explicit in markup and feed; avoid making the subscription price look like the base offer.

What Devryno checks in the paid audit:
- Feed row price, currency, availability, product URL, item id/title.
- Public landing-page visible price candidate.
- Product/Offer JSON-LD price, currency, availability.
- Open Graph product price tags.
- Microdata/meta price and currency.
- Canonical URL, robots/noindex reachability where relevant.

Try the path:
- Free preview: https://devryno.com/free/merchant-feed-preview?url=https%3A%2F%2Fdevryno.com%2Fexamples%2Fgoogle-merchant-feed.xml&limit=2
- Paid checkout: https://devryno.com/buy/merchant-feed-audit
- Paid x402 endpoint: https://devryno.com/pay/merchant-feed-audit?url={public-product-feed-url}&limit={1-10}
- Sample paid JSON: https://devryno.com/examples/merchant-feed-audit.json
- Diagnostic order: https://devryno.com/briefs/merchant-feed-audit-diagnostic-order.txt
- Payment checklist: https://devryno.com/briefs/merchant-feed-audit-payment-checklist.txt

Public context links:
- Shopify Community diagnostic-order thread: https://community.shopify.com/t/when-gmc-shows-a-price-mismatch-warning-how-do-you-actually-figure-out-what-to-check-first/599658
- Shopify Community local mismatch-checking tool feedback: https://community.shopify.com/t/free-local-chrome-check-for-shopify-merchant-center-price-and-availability-mismatches/660026/4
- Google price/feed/landing mismatch docs: https://support.google.com/merchants/answer/9773429?hl=en-GB
- Google structured data setup docs: https://support.google.com/merchants/answer/7331077?hl=en

Important:
Devryno is not affiliated with Google or Shopify. This is a public preflight over public feed/page evidence; it does not guarantee approval.