" GTM no-script code not found: possibly lacking or not in " I test to incorporate the script during the header.tpl but there's no segment. Update: Challenge was solved. I just use A different addon and personalize hook to make it happen. Thanks Ali Edited November 21, 2018 by QNP https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html