If you will be selling digital products (products that customers can download) there are only a few differences between adding physical and digital products.

If you will only be selling digital products, one setting you will want to change is in the Shipping Tab under Settings > Store in your WordPress dashboard.

Before creating your digital product, you will want to head back over to the Admin tab in your store settings (Settings > Store). You can adjust the default settings as needed:

Next, to create your new digital product select Add New under the Products menu.

In the Add New Product page, type in the name for your product and a description.

While there are other options to choose from when adding new products, they are not required. For further information regarding product options, please see the plugin developer's documentation:

http://getshopped.org/resources/video-tutorials/

If you do not have any variations to add to your product, you can click the Publish button to save your product and publish it to your site. If you would like to add variations, you can click the Save Draft button to only save the product.

Now you can choose to add any variations you have for your product. A list of your variation sets is now displayed below the product description. Choose one or more variations and click the Update Variations button to add these to your product.

Once you have added variations click Publish (or Update if you published previously) to save and publish your product to your site.

Navigate to your site's product page to view the product:

If you have additional products, you can continue adding those as needed.