There is no limit to the number of categories and subcategories you can have. However, it is recommended to have at least 4 main categories so that the homepage will not look empty and the maximum can be around 10.

It is best to have subcategories if there are a lot of products to be displayed so that it is easier to categorize and find the items. Recommended to have at least 3-5 subcategories for each category.

Tips from Kaddra:

If you prefer to use Rectangle images for the Main category and sub-categories, a minimum of 4 images are required. While the Square images require a minimum of 8 images.