Meta is removing Nielsen DMA geo-targeting from all campaigns on June 22. That's nine days from now. If any of your US ad sets target by Designated Market Area — the Chicago DMA, the Dallas DMA, the New York DMA — those campaigns get paused automatically when the deadline hits.
This is not a gradual deprecation. DMA fields are being removed from all Meta targeting and reporting on that date. No auto-migration, no extended warning period. The ad set stops spending.
What's being replaced
Nielsen's Designated Market Areas have been the standard US regional targeting unit since the 1950s. Meta adopted them because they gave media buyers a familiar map for splitting national budgets by local market. There are 210 DMAs covering the continental US.
Meta is replacing them with Comscore Markets — also 210 US regions, but drawn using both linear television and digital media consumption data rather than broadcast TV ratings alone. The coverage isn't identical. Some market boundaries shift. Smaller markets can redraw or merge depending on how Comscore weights digital consumption patterns in a given geography.
The switch started as an automotive requirement in early 2025 — vehicle offer ads had to migrate first. That deadline passed. Now the full platform follows on June 22.
What breaks if you miss it
The obvious consequence is campaign pauses. Meta will not auto-translate DMA targeting into the equivalent Comscore Market. If your ad set references a DMA code in its targeting parameters, it stops running.
Less obvious: your reporting breaks too. Any analysis that slices performance by DMA — comparing market-by-market efficiency, building regional spend allocation models, tracking geographic ROAS trends — loses continuity on June 22. Comscore Markets don't map cleanly back to DMAs, so your historical DMA data becomes a separate reference point you can no longer extend forward.
Audience size is another variable. Because Comscore Markets draw boundaries differently, the same "region" may cover a different population after the switch. Your CPM expectations and delivery projections for regional campaigns need to be recalibrated, not carried over from DMA baselines.
And if you're managing campaigns programmatically via the Marketing API, the API-level DMA targeting fields are also deprecated on June 22. This affects any third-party tool or internal automation that writes ad sets with DMA parameters.
Who actually needs to act
Most advertisers running national US campaigns without regional breakdowns are not affected. They've never used DMA targeting explicitly.
The accounts that need to check immediately:
- Campaigns targeting specific US markets by selecting a DMA as the location type
- Automotive advertisers who haven't verified migration from the early 2025 transition
- Retail chains and franchise brands running separate ad sets per local market
- Agencies managing multi-market budgets with regional performance benchmarks and CPM targets
To find affected ad sets: open Ads Manager, go into the location targeting breakdown for each active campaign, and look for any ad set that shows a DMA listed as a targeting location. If you're running large volumes, the Marketing API let you filter by targeting type before the fields are removed.
How to migrate
In Ads Manager, open the affected ad set's targeting settings. Under Locations, remove the DMA selections and add the Comscore Markets equivalent. Comscore Markets are now available in the standard location targeting interface — search by market name the same way you'd search for a city or region.
Two things to verify before you finalize:
First, Comscore Markets use different geographic codes internally. A name match between a DMA and a Comscore Market doesn't guarantee the boundaries are identical. Check that the Comscore Market covers the population size and geography you're expecting before saving.
Second, if you're running regional ROAS targets or frequency caps tied to specific market sizes, test updated ad sets at a low budget before the full switch. The audience size shift in some markets is meaningful enough to move your CPM.
Why Meta made this switch
DMA targeting is a broadcast media construct — a system designed in the 1950s for TV advertising, where local news coverage defined market boundaries. Comscore's framework combines linear TV ratings with digital consumption patterns, which makes it a closer match for how audiences actually distribute their time across platforms today.
For performance marketers, the practical difference in most markets will be minor. Market names stay familiar, coverage is broadly comparable. But for anyone running tight regional budget models, the boundary shifts are real and need to be verified rather than assumed.
The broader pattern is consistent: Meta is systematically replacing legacy ad infrastructure built for broadcast television with systems native to digital and streaming-era audience measurement. DMA targeting being retired is the same impulse that drove the Attribution Settings update, the Advantage+ defaults expansion, and the shift toward views-based measurement. Each change moves the platform further from 2010-era ad buying conventions.
Nine days is not much runway if you're managing regional campaigns across multiple clients or accounts.
Run the audit today. Platform removals like this show up silently — your campaign stops spending without any alert at the top of Ads Manager.
If you want a clear view of which Meta campaigns are wasting spend beyond just geo-targeting settings, the free ad account audit takes about three minutes.
Sources: Social Media Today, ppc.land, AdBeacon, June 2026
