Use product and service categories to organise the things you buy and sell. Learn more about Categories
You can have up to 4 category levels. For example, you can have parent category called Clothes and 3 sub-categories: Men's clothes, Shirts, and T-shirts.
After you add a category, you can assign your products and services to it.
When you edit a category, all products, services, and sub-categories are updated automatically.
Click the Gear icon > All Lists. and select Categories.
When you remove a category, items assigned to it are either moved up one sub-category level or reclassified as Uncategorised.
You can show or hide categories when you print or email a sales form. For example, you can hide your categories on invoices if you don't want your customers to see them.
Click the Gear icon > Custom Form Styles.