Example: You have an e-commerce Site with merchandise web pages for different sizes of a selected t-shirt. Eight fields are available by default, and each is accompanied by an inventory of available keywords. Some search phrases are mandatory and so are indicated using a "*". If you want to use https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html