How to add a product with different variant, or price ?

From the Main Menu go to Inventory,and then selectAdd stock category. You will go to another page where you must fill in the information about your product. After you fill in the required fields (name, quantity, price and object), go to the Product Details, hence choose Variant.

You'll see new window properties of the product, select add a new variant / option. From the drop-down menu, select the category you want to add (material, color). If it's material, it will emerge categories from which you can choose, if you want to be from another material, press X and they will be removed in the box, so you can add other materials. On the right you'll see new window Variant of theproduct where you need to enter customer and supply costs. Each product can be as different material or color and with different price.