Located under Store > Configuration > ElasticSuite > Recommender > General

General

Parameter	Default value	Description
Exclude from recommendations any product already bought by the visitor	No	If set to Yes, any product that the current visitor has previously purchased will be automatically hidden from the recommendation blocks. Note: This strictly applies to automated, behavior-driven recommendations and does not affect manually selected/pinned products.
Prevent defaulting to whole catalog	Yes	If a product is new or lacks sufficient behavioral data (views, searches, sales), the recommendation engine might not have enough context to find related items. • Yes: Strictly prevents fallback recommendations; no products will be shown if there is insufficient data. • No: The engine falls back to displaying generic, unconstrained products picked from your entire catalog.
Restrict Recommendations to Company Behavioral Data	No	(Applicable only in B2B contexts). When enabled, the product recommendation engine will exclusively use behavioral events (views, purchases, etc.) generated by users belonging to the exact same customer company, ensuring highly tailored B2B recommendations.