Prestashop Google Tag Manager observe the regular occasions that happens on your shop pages. This will let you review the behaviour of people browsing your retailer. You'll find three ways to incorporate hreflang tags to webpages (by incorporate, we don’t imply put into practice, we’ve currently covered that):  Look at https://crossbookmark.com/story18670745/the-google-tag-manager-prestashop-diaries