The catalogs you create directly on Facebook are currently not imported to Socioh. However, if you’ve created a catalog in Socioh, but made edits to it (such as adding or deleting products, creating product sets, etc.) on Facebook, you should see those changes reflected in your catalogs.
You can also import all edits immediately by clicking on the 'Resync Catalogs from Facebook' option on the top right corner of your 'Branded Catalogs' page.