Facebook Ads Request: Using Product Categories
Feature Request|We are collecting votes for this issue
While Facebook Ads are dynamic and can use a different product from your categories each time your ad is displayed, you cannot currently promote an entire product categories in a single Facebook ad. You can also choose specific products and take control of the ad's creative (caption, headline, etc.) with classic ads.
We are always working to update and improve our products, and your feedback is greatly appreciated.