What it is
Review and rating markup powers the star ratings in results, but it must be genuine and valid. Missing it loses the stars; invalid or fake markup risks a penalty. Review markup absent or wrong. Misses or invalidates rating stars. Add valid review/aggregateRating per policy.
Why does product missing/invalid review/rating matter for AI search?
Misses or invalidates rating stars.
How do you fix it?
Add valid review/aggregateRating per policy.
How do you find it on your site?
- Check Product markup for valid aggregateRating or review data.
- Confirm the reviews are genuine and shown on the page.
- Fix invalid rating values or structure.
- Validate and avoid self-serving markup.
Which ranking and citation factors does it touch?
Valid review markup earns star ratings that lift click-through. It must be genuine to stay compliant.
What is the impact?
Low-medium. Direct.
What is the evidence?
Follow review snippet rules. Google Search Central, Product (structured data); Google Search Central, Structured data general guidelines
Sources
Frequently asked questions about product missing/invalid review/rating
What does "Product missing/invalid review/rating" mean?
Review markup absent or wrong.
How do you fix product missing/invalid review/rating?
Add valid review/aggregateRating per policy.