Meta Ads Manager never sits still. Every few months the interface shifts, a menu gets renamed, and a workflow you had memorized moves somewhere else. Sometimes the change is a genuine improvement. Other times, as an advertiser, it is frustrating as hell.
The direction is clear. Meta wants to remove the middleman. Agencies, freelance managers, anyone who sits between the business and the ad account is being nudged aside in favour of AI that “does the advertising for you.” Advantage+ this, automated that, and a big blue button recommending you let the algorithm handle it.
Here is the problem. If you make good, human-crafted creative and you leave placements on Auto, Meta will cheerfully crop your square into a story, stretch your portrait into a banner, and serve a version of your ad you never approved. The platform has become worse for exactly the advertisers who put the most work in.
You still have control. It just lives in a fussy corner of the ad builder that has gotten more frustrating over time. This post walks through how I set up per-placement creative so the right size lands in the right slot every time.
Why Auto Placements hurt human-made creative
Auto Placements is a fine default when your creative is generic or algorithmically generated. It is a bad default when your creative has a layout.
Think about what actually happens. You upload a 1:1 square with a headline, a product shot, and a small logo in the corner. Meta then needs a 9:16 asset for Stories and Reels and a 4:5 asset for the main feed. It has two options: letterbox your square inside a bigger frame, or crop it. Both outcomes are worse than the version your designer built.
Every objective also has its own quirks. The placement list you see under a Sales campaign is not identical to the one under a Leads or Awareness campaign, and Meta’s recommendations shift depending on which one you picked. Do not blindly follow the recommendation banner. It is optimizing for delivery, not for how your ad looks.
The fix is to give each placement group a creative that was designed for it.
The three creative sizes you need before you start
Do not open Ads Manager until you have three exports of the same concept. Same message, same offer, three layouts.
| Ratio | Name | Export size | Where it runs |
|---|---|---|---|
| 9:16 | Story / Vertical | 1080 × 1920 px | Stories, Reels, in-stream reels, Instagram search |
| 1:1 | Square | 1080 × 1080 px | Marketplace, right column, Business Explore, Facebook search |
| 4:5 | Portrait | 1080 × 1350 px | Facebook and Instagram feeds (everything else) |
If you only have one of these, stop and make the other two. The whole approach below depends on having all three ready to upload.
Where placement customization lives in Ads Manager
In the ad builder, scroll to the Ad Creative section and upload your media. Depending on the objective and the ad format, Meta will either present a clean per-placement picker or drop you into a Selected Media grouping. If you get the latter, you have to open the Customize Media pop-up for your creative.
Inside that pop-up, look at the left sidebar and click Placements. At the top you will see your three sizes. This is where the work happens.
This pop-up is finicky. After you change anything for one creative, hit Save, close the pop-up, and re-open it before touching the next one. If you edit two creatives in one session without saving in between, it will wipe your work.
Two rules before you touch anything
Rule one: save after every edit. I know I just said it. It is worth saying twice. Save, close, re-open.
Rule two: work in order. Once you turn off a placement for a creative, you cannot edit that placement again until you add it back. If you deselect placements out of order, you will end up with greyed-out checkboxes you cannot click, and you will have to undo everything to fix it. From a UX perspective this is maddening, but the order below avoids the trap entirely.
I do not use the Audience Network, so it is not included in any of the lists below. Use it at your own discretion and slot it into whichever creative makes sense for you.
Step 1: Assign the 9:16 story creative
Start with the vertical asset. Select the 9:16 creative, then check only the placements below and deselect everything else.
- Stories, Status, Reels: check everything in the group
- In-stream ads for reels: Facebook in-stream reels
- Search results: Instagram search results
Save it. Close the pop-up. Then re-open it.
Step 2: Assign the 1:1 square creative
Now select the 1:1 creative. Check only these and deselect everything else.
- Feeds: Facebook Marketplace, Facebook right column, Facebook Business Explore
- In-stream ads and reels: Ads on Facebook Reels
- Search results: Facebook search results
Save it. Close the pop-up. Re-open it one more time.
Step 3: Assign the 4:5 portrait creative
Select the 4:5 creative. Because the story and square creatives have already claimed their placements, most of the checkboxes will now be greyed out. Only a handful of feed placements should still be selectable.
Deselect every checkbox that is still selectable, then save. The 4:5 portrait is now the creative for the main Facebook and Instagram feeds, which is exactly where it belongs.
The 4:5 portrait is the default feed asset, so it inherits whatever the other two creatives did not take. Doing it last means you never have to fight the greyed-out checkboxes.
Do not blindly follow Meta’s recommendations
Throughout this process Meta will suggest that you let it handle placements, enable Advantage+ creative enhancements, or apply “recommended” settings. Every one of those prompts is a request to hand your layout back to the algorithm.
Some enhancements are harmless. Others will add generated backgrounds, re-crop your image, or overlay text you did not write. If you went to the trouble of building three deliberate versions of an ad, review each enhancement individually and turn off anything that changes the composition.
Quick reference checklist
Print this, pin it, whatever works.
- Export three versions: 9:16 (1080 × 1920), 1:1 (1080 × 1080), 4:5 (1080 × 1350).
- Upload all three under Ad Creative.
- Open Customize Media and click Placements in the sidebar.
- 9:16 first: Stories, Status and Reels (all), Facebook in-stream reels, Instagram search results. Save, close, re-open.
- 1:1 second: Facebook Marketplace, right column, Business Explore, Ads on Facebook Reels, Facebook search results. Save, close, re-open.
- 4:5 last: deselect anything still selectable. Save.
- Preview every placement before you publish.
Final thoughts
Meta will keep changing this interface, and I will update this post as the labels and groupings move. The underlying principle does not change: a human designed the ad for a specific frame, and the platform should serve it in that frame. Auto Placements does not respect that. Manual placement mapping does.
It is ten extra minutes per ad. For anyone who cares how their brand shows up, that is ten minutes well spent.
Tired of babysitting Ads Manager? Get in touch and we can talk about how we structure paid social for B2B teams.