With dynamic ads, you can promote relevant items from an entire catalog across any device. Display ads for thousands of items to the right audience and automate the process. The solution has three major elements:
Create a feed from your catalog to automatically deliver images, descriptions, prices in your ads. Set up App Events or Facebook Pixel to measure actions, such as purchases, and profile target audiences for ads. Finally create and deliver ads based on your catalog; they display relevant items from your catalog feed and target your audience.