Helpful URLs are to get established inside the configuration web page of every product, group, or static material web page. This creation page is just valuable for a few automatic web pages, and more often than not you won't have to worry about these. 8 fields can be found by https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html