You specify the principal URL as the search engine can have problems identifying which one really should be the primary URL.  The following tutorial will show you how you can permit Canonical URLs in Prestashop one.five. PrestaShop modules we designed very first to solve the condition of our individual https://addons.prestashop.com/pl/seo-pozycjonowanie-naturalne/31857-automatyczne-google-rich-snippets-json-ld-opengraph-seo.html