The first step for any business working with Business Central and online retail is to create items.
To access your list of items, navigate to the Items page (alternatively search for items and click the corresponding search result).
On the items page, press New. If you already have a list of item templates, press the template you wish to use. Otherwise, set up a new item template.
Fill in the item card with the relevant data for your new product. The item should be created with data corresponding to your personal Business Central setup with regards to posting groups, discount groups, item category codes, etc.
Manage inventory for your item with the Item Journal by folding out Process in the item card.