Observed Behavior: The “You may also like” carousel on the cart page displays product recommendations that occasionally include items already in the cart. The recommendations do not account for the cart’s overall styling or category composition — a cart containing three winter coats may show additional coats rather than complementary items like scarves, boots, or bags.
Technical Root Cause: The recommendation engine generates suggestions based on individual product-to-product similarity scores without considering the cart as a holistic context. Cart items are not excluded from the recommendation candidate pool. No “outfit completion” or “complementary category” logic exists.
Business Impact: Showing items already in the cart wastes the recommendation slot and signals a lack of personalization intelligence. Showing more of the same category (coats for a cart full of coats) misses the cross-sell opportunity to increase AOV with lower-priced complementary items.
Remediation Path: Exclude cart items from the recommendation pool. Implement category-aware cross-selling: when the cart contains outerwear, recommend accessories; when it contains a dress, recommend shoes and bags. Use the “Complete Your Outfit” framing that H&M employs in editorial content but not in the commerce experience.