Illustration: You've an e-commerce Web page with products internet pages for various dimensions of a selected t-shirt. So in short, I entered an if-then statement, the place I explained to the template not to include the canonical tag for your items While using the ID nrs specified. For those goods https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html