Adult products must now be labeled in ecommerce feeds or markup to stay eligible for Shopping

Google updated its guidelines for sites with explicit content to require that adult-oriented products be labeled for Google Shopping features, either with the adult attribute in a Merchant Center feed or with hasAdultConsideration structured data markup. Unlabeled adult products risk losing Shopping eligibility.

• Labeling can be done with the adult attribute in the Merchant Center product feed or the hasAdultConsideration structured data property on the product page.
• The requirement applies to Google Shopping surfaces; Google says it does not change visibility in organic web search results.
• Google's adult-oriented content policy for Merchant Center is the companion reference for what counts as an adult product.