Carousel Ads

A carousel ad shows two or more images or videos in one ad, and people swipe sideways through them. Meta's help center says each card has its own headline, description, link, and call-to-action. You build one in Ads Manager by choosing Carousel in the ad setup, then adding cards. For Facebook, Messenger, and Audience Network placements the limit is 2 to 10 cards. On Instagram it is up to 10 in Feed but only 3 in Stories. Because each card can send people to a different page, a single ad can sell several products, explain several benefits, or tell a short story in order.

Meta's specs are specific. Facebook accepts square 1:1, 4:5, or 9:16 images (4:5 is limited to Advantage+ catalog carousels using catalog product images). Recommended resolution for 1:1 is 1024 by 1024 pixels, and images can be .jpg or .png up to 30 MB. Videos can be up to 4 GB, with 15 seconds recommended, and Instagram Feed videos are capped at 2 minutes. Copy limits are 125 characters of primary text, 40 characters for the headline, and 25 for the link description on Facebook, Messenger, and Audience Network. Videos autoplay as people swipe, without sound by default, and videos under 30 seconds loop for about 90 seconds.

Carousels interact with objective, placement, and delivery in a few ways. Not every objective and placement combination supports them, and Meta has an error code page for unsupported combinations. A setting lets Meta show the best-performing cards first, which means the order you design may not be the order everyone sees. If your story depends on sequence, such as a step-by-step guide, lock the order. Carousels also work inside catalog ads, where cards are products pulled from your feed. For a tool-by-tool comparison, remember that a single image ad has one headline and one link, while a carousel multiplies both.

The classic mistake is wasting cards. People often see the first card and stop, so cards three through ten may rarely be seen. Put your strongest image or offer first, and make the first card complete enough that the ad works even if nobody swipes. Another error is mixing messages, where card one promotes a sale and card four links to an unrelated page. A third is ignoring crop and text limits: long headlines are cut off, and a 1:1 image prepared for Feed may not fit Stories. Finally, do not assume carousel beats single image; test it against one.

This week, check your carousel ad's card-level results. Ads Manager has metrics for carousel ads, including how each card performs, so you can see which cards earn clicks. Move the top performer to position one, and drop cards that never get clicks. Keep card count modest, often three to five, unless you really sell that many products. Match each card's headline to the page it opens, so the landing page confirms what the card promised. If you run it with Advantage+ placements, preview every placement to check cropping, particularly Stories, where only three cards are allowed on Instagram. Finally, save a screenshot of your top card layout so the winning order is easy to rebuild in the next campaign.