Add a Facet to Category Navigation
Add search facets to a Category template.
Complete the following prerequisites:
To create Sitecore facets on custom catalog properties, follow the instructions in the Developer's Guide to Item Buckets and Search. It is also required that the search index contain a field for the custom catalog properties.
At the Content Editor
Create a new facet in the following location:
/sitecore/system/Settings/Buckets/Facets.Create a display name, add the field name to have the facet focus on, and then click save.
Open the catalog templates from the content tree at
/sitecore/templates/Commerce/Catalog/Commerce Category.Open the _Standard Values content pane.
In the runtime search facets, select the facet you created and add it to the selected list, and then click Save.
The facets you have selected are available on all category pages.
Note
You can use different facets for specific category page by modifying the
Category Search Facetsfield for that category.