This forces prospects to visit the product's web site and select a mix, in lieu of only including the default one to your cart. Notice that products without any blend will nonetheless have an "Increase to cart" button inside the group web page. Proper implementation: Ensure hreflang tags are effectively https://addons.prestashop.com/ru/seo-natural-search-engine-optimization/30904--hreflang-seo.html