Add noindex tag in a specific category

Good morning,
how can I add the tag noindex in a certain category?

In this specific case, I would like the offers category of my ecommerce is not scanned by search engines.

Thanks in advance for the help.
Vincenzo Di Modugno

Bagarozzo wrote:
Hi,

You need to create at the root of your site "robots.additions.txt" file and write it in the level of access to the different ways the site. You can for example set a property of a product that you can not scan the search engines. And during a negative property to add this product to "robots.additions.txt" file. If you want a detailed answer, tomorrow I will give you the code to solve this problem.