Once you have created your first video template and catalog in Confect, you will have to connect this new URL into your Facebook catalog to start running product level videos.
Confect video catalogs are "supplementary", meaning they don't include all the product details, but only a link to the product video, and the item's ID.
Because of this, you should keep your current, standard catalog URL inside "Data feeds" and add the new video catalog URL into "Supplementary feeds".
To do this, follow the same steps as you did for your standard catalog using images, but instead of selecting "Facebook" as the platform, select "Facebook Video Feed".
Make sure to pick the video template you've made, save, and generate the catalog.
Lastly, copy the link.
Open up the catalog you're using for advertising and go into the "Data sources" page.
Here, click "Add supplementary feed", go through the steps and paste in your video catalog URL from Confect.
Also, make sure to link this supplementary feed to the main feed in the catalog.
Since your catalog now includes both videos and images, you will need to specify which one you want to use on the ad level.
This is controlled inside the Confect plugin's dropdown.
Simply choose "Video Catalog Ad" from the dropdown, same as when switching variants.
If you want to A/B test videos against images: Simply create 2 ads in separate ad sets; making sure to switch one to a video, while keeping the other on an image.
Congratulations!
You're ahead of the curve; ready to run catalog product-level videos