There are 3 levels in our category structure.
Currently, the product feed doesn't contain any of the master category information but we plan on changing that in the near future.
In the example above, the master category is "Home & Garden", the category is "Kitchen & Dining" and the subcategory is "Kitchen Tools & Utensils."
We also include a unique ID number for each of the categories. Depending on your database structure, you may or may not need to use the ID numbers.