What are Tags used for?

Tags are a brief description of the content of the merchandising element. The tags can be used to assist with locating the merchandising element when searching at a later time. They also serve as an indication as to what is included in or the purpose of the rule or campaign element. The "Tags" field is used to specify keywords or tags that you want to associate with the certain merchandising feature.

For example, if you generate Landing Pages using scripts, you can add the keyword "jackets" to the Landing Page. 

You can also use this field to group certain Landing Pages. For example, if you tag several Landing Pages with the keyword "jackets, you can locate all landing pages related to "jackets" by executing a tags search to pull up all relevant pages.