A multi-placement ad holds up to three creatives in different aspect ratios. Meta shows the best fit for each placement, such as Feed, Stories and Reels, so you don't need a separate ad for each placement.
What to include
Up to three creatives. One of each shape covers the most placements:
1:1 (square): Feed
9:16 (vertical): Stories and Reels
1.91:1 (horizontal): right-hand column and some Audience Network placements
You don't have to use all three, but every placement you target needs a creative it can show.
Add creatives
In the Creative Assets column, click + to add images or videos from the Asset Library. Each ad can have up to three.
Group creatives into one ad
In the Bulk Add wizard, at Select creative assets:
Select the assets you want together.
Click Group into multi-placement.
They become one ad card with a Multi placement label.
To separate them, select the grouped ad and ungroup it.
Placement rule errors
This error means a placement you're targeting has no creative Meta will show there. When this happens, Meta rejects the whole ad. The usual causes are:
A missing shape. For example, you're targeting Stories but there's no 9:16 creative. Add the missing shape.
A format the placement doesn't accept. Some placements don't accept certain video specs, or need video instead of a static. Swap the creative, or remove that placement from the ad set.
A combination Meta won't serve. Each creative is fine on its own, but Meta won't serve them together for the placements you've chosen.
To fix it, open View details on the task and read Issue Info in the Ad Details panel to see which placement is named. Add a creative that fits it, or remove that placement, and launch again. You don't need to rebuild the task.
Including a 1:1, a 9:16 and a 1.91:1 creative in every group prevents most of these errors.
See also How to launch ads and Tracking results in ad detail. If you can't work out an error, send us the ad name and the placements you chose.