This forces prospects to visit the products's webpage and pick a mixture, rather than only introducing the default a single into the cart. Be aware that solutions with no mixture will continue to have an "Include to cart" button from the classification webpage. Right implementation: Assure hreflang tags are properly https://addons.prestashop.com/nl/seo-zoekmachineoptimalisatie-vermelding/30904-automatische-hreflang-tags-en-canonieke-tags-seo.html