Product or Service Setup

Product Setup

On that page you would be able to add new product/service with fill up regarding information form fields. Setup > Products and Services

If you want to set custom variation/fields for a product/service, then you will see a + button, with clicking that button you would able to set your desire custom fields.

The last 2 checkboxes are important and these defines - product/service status & would show that product on product listing page or not.

Product Categories

In category page - you would able to create new category, edit/remove existing category. Setup > Prod/Service Categories