I chose the location’s header template that is found at /themes/classic/templates/_partials/header.tpl. With the help from the hook h = ‘MyCustomNameHooks’ This option is especially helpful for advertising buys. The text and placement in the inform count on the concept; from the default topic, it is "Last goods in stock", and https://addons.prestashop.com/it/seo-indicizzazione-naturale/31857-google-rich-snippet-automatico-json-ld-open-graph-seo.html