A commerce enabled Publication needs to be deployed as a Catalog. Once a Publication is uploaded it can be added as a Catalog.
When creating a Catalog it enables different Publications to be deployed to different devices using the same URL. The beauty of this is that a iPad optimized or a Facebook optimized Publication can be deployed from the same URL as possible a desktop optimized Publication.
Once the Catalog is created it is assigned to a snippet of code to be embedded into a webpage to display the Publication.
Step 1 - Click on Catalogs
Step 2 - Create a Catalog (note that edits can be made to existing Catalogs
Step 3 - Configure Catalog
* You can deploy desktop/mobile/Facebook optimized content via 1 Catalog. The Catalog will be on a website that will pull in the correct content (specified) here depending on what device or where the customer is accessing the content from!
Step 4 - Apply the Catalog to a Snippet