Be aware that If the retailer has now been indexed by Google or every other internet search engine, it might get a while for your personal modifications to appear within the search engine results... You could have to be patient! The title of the store alone is set in the https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html