Hello,

The brand is an attribute like a color attribute. You need to create attribute items (for example white, black – for colors or HP, Dell Lenovo – for PC) and then add the attribute to the product. In a result, HP attribute would show the products relating to HP.

You can check this manual as well: https://xtemos.com/docs/woodmart/faq-guides/how-to-setup-brands/

Best Regards