A placement is the specific location where a Meta ad is shown: Facebook Feed, Instagram Stories, Instagram Reels, Facebook search results, Messenger and many others. Each ad set decides which placements it is allowed to use, and Meta then decides, auction by auction, where each impression actually lands.
How placements work
Ads Manager groups placements by type of screen and behaviour. At the time of writing (October 2026) the main groups are:
- Feeds: Facebook Feed, Instagram Feed, Instagram profile feed, Facebook Marketplace, Facebook video feeds, the Facebook right column (desktop only) and Threads.
- Stories and Reels: full-screen vertical placements on Facebook and Instagram.
- In-stream ads for videos and reels: short ads inside longer videos.
- Search results: ads shown when people search on Facebook or Instagram.
- Messages: Messenger placements such as sponsored messages.
- Apps and sites: the Audience Network of third-party apps.
You either let Meta choose across all eligible placements, known as Advantage+ placements, or pick them yourself with manual placements. With the automatic option, Meta shifts budget towards the placements where it predicts the cheapest results for your performance goal. The list available to you depends on the campaign objective and the ad format; some objectives exclude certain placements altogether.
Why it matters
Placements differ in cost, in how people behave and in what creative works. A person scrolling Reels gives an ad a second or two with the sound on; a person browsing Marketplace is in a shopping frame of mind; a right column ad on desktop is small and easy to ignore. For a UK business, that means the same campaign can look efficient or wasteful depending on where impressions went.
Placement also changes what you need to produce. An ad built only as a square image will appear in vertical placements with empty space around it or awkward cropping, which wastes some of the cheapest inventory Meta has.
There is a brand safety angle too. Placements such as the Audience Network and in-stream video put your ad next to content you do not control. Most small advertisers are comfortable with that, but a solicitor, charity or children’s brand may want to review where ads appeared and use Meta’s inventory controls or a block list before scaling spend.
Common mistakes
- Restricting to Facebook Feed and Instagram Feed by habit. Fewer placements often means higher costs, because the system has less room to find cheap impressions.
- Judging placements on cost per click alone. Some placements produce cheap clicks that rarely convert, including accidental taps in apps.
- Using one aspect ratio everywhere. Square-only creative looks unfinished in Stories and Reels.
- Never checking where spend went. Without a placement breakdown you cannot tell whether results came from Reels or from the Audience Network.
How to act on it
Start with automatic placements in most cases, then check the results by placement using the breakdown menu in Ads Manager. Judge each placement on the metric you are optimising for, such as cost per purchase or cost per lead, not on clicks. If one placement spends heavily and returns little over a fair sample, exclude it in a duplicate ad set and compare.
Supply creative for each shape: a 4:5 or 1:1 version for feeds and a 9:16 version for Stories and Reels, then use placement asset customisation to assign them. Keep important text inside the safe areas of vertical placements. Placement reviews and creative planning are part of my Facebook ads management service.