You specify the primary URL since the search engine can have issues pinpointing which one particular must be the principal URL.  The next tutorial will teach you how you can allow Canonical URLs in Prestashop one.5. PrestaShop modules we established first to solve the situation of our individual enterprise https://addons.prestashop.com/pt/seo-referenciamento-natural/31857-rich-snippets-automaticos-json-ld-opengraph-seo.html