This forces prospects to visit the item's web site and pick a mix, rather than only including the default one for the cart. Note that products and solutions with no mixture will continue to have an "Insert to cart" button inside the class web page. Suitable implementation: Ensure hreflang tags https://addons.prestashop.com/nl/seo-zoekmachineoptimalisatie-vermelding/30904-automatische-hreflang-tags-en-canonieke-tags-seo.html