Log into your Seller Dashboard, select 'My Products' on the left, 'Add Products" on the upper right and fill out the forms.
Log in to your dashboard.
In the menu on the left hand side of the page, scroll down to "My Products" Click on it, and then on "Add New Product" in the top right corner. From there you just need to follow the step by step process, enter all of the information, and then "Save Changes" Don't forget...that process only adds items to your "My Products" list. You'll then have to add that product to your inventory, and tell customers how many you have to sell.
Video walkthrough coming soon!