There are two ways to do it:
From the view: Overview
1- In the top menu, go to Products.
2- Select the option: Add products.
While in the section: All products.
- Click the button at the top right: Add new.
-In both cases, it takes you to the same view.
- There you enter all the product information: Name, description, delivery times, quantities required, availability, category, price, shipping, discounts, returns, customization, associated details, and image gallery.