Notice that In case your retail store has presently been indexed by Google or almost every other search engine, it might take a while for the changes to look in the search engine results... You could have to be patient! More often than not, we advise not to touch these https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html