The module automatically provides a default canonical url to all of your solution, category, CMS pages only. By default, the module uses The existing url of the site because the default canonical url. If none of these are definitely utilized, Google will trust in other alerts like hreflang, inner links, https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-google-rich-snippets-json-ld-opengraph-twitter-tags-schemaorg.html