Facebook Product Categories Subverticals
 
Meta advises including a Google product category for each product of your
      catalog. Google product categories (GPCs) are a taxonomy established by
      Google to hierarchically organize products into related groups. Although
      Facebook developed its taxonomy, the Facebook Product Categories (FPCs),
      they have become mostly irrelevant.
 
In addition to GPCs, Meta has introduced another category type: Meta
      Catalog Subverticals. The term "subvertical" implies a broader "vertical"
      categorization that doesn't significantly exist. Essentially, subverticals
      are non-overlapping sets of GPCs without additional structure.
 
There are currently only 26 Subverticals. Each
      subvertical groups specific GPCs where every subvertical represents a product
      type with a shared attribute set. While GPCs categorize products by purpose,
      subverticals focus on the products' nature.
 
For instance, "Apparel & Accessories > Costumes & Accessories > Costume
      Shoes" is categorized as
shoes_and_footwear, whereas
      "Apparel & Accessories > Costumes & Accessories > Costumes" is categorized
      as
clothing.
 
To view a complete list of GPCs and their corresponding Subverticals,
      visit our
Google Product Categories to Meta Catalog Subvertical page.
 Meta Catalog Subverticals