marinsoftware.com Product Feeds Unleashed: Automating Your Ad Campaigns 11 A/B Testing 2: Facebook Dynamic Product Ads On the Facebook side, you can A/B test Dynamic Ads, with the title and image being two of the most useful components to analyze. Note that Facebook allows you to submit only square images, which may not be the best fit with industries using mostly portrait or landscape visuals (such as fashion and apparel). Marin Tip: When you submit square pictures to Facebook, your padding may appear off, or the square box of the image may not be fully captured. With Marin’s feed management solution, we dynamically recognize the background colors of your images, extending and padding them as needed to optimize performance. As you can see, there are several approaches you can take to what you’re testing, depending on whether you’re using drafts and experiments in Google, Facebook’s testing environment, etc. With Marin, you automatically know which creatives are winners or losers based on criteria and confidence thresholds that you assign and can change at will.