How to Run UGC in Meta Ads (Facebook & Instagram)

Meta remains the primary paid social channel for most DTC brands — and UGC is now the dominant creative format within it. Brands that made the shift to UGC-first Meta campaigns consistently report lower CPAs and better creative longevity than those still relying on high-production brand content. Here is how to set up and run UGC campaigns on Meta correctly.

Campaign Structure for UGC Testing

The most effective structure for testing UGC on Meta is the ABO (Ad Set Budget Optimisation) approach for the testing phase: one campaign, multiple ad sets with equal budgets, each containing one creative variation. This gives each creative a fair test at the same spend level before you identify winners and shift budget.

Advantage+ Shopping Campaigns (ASC) work well for scaling once you have identified winning creatives — they allow Meta's algorithm to optimise delivery across placements automatically. Run ASC for scale, ABO for testing.

Creative Specifications for Meta Placements

• Aspect ratio: 9:16 (vertical) covers Reels, Stories, and Feed on mobile — one ratio for all placements
• Resolution: minimum 1080×1920 for vertical content
• Length: 15–30 seconds for most direct-response objectives; up to 60 seconds for complex products
• Safe zone: keep key visuals and text within the centre 80% of the frame — edges are cropped on some placements
• Captions: always add subtitles — most Meta ads are watched without sound

Film vertical, add captions, keep the hook above the safe zone. Everything else is optional.

UGC vs Dark Post vs Partnership Ad

On Meta, you have three options for running UGC in paid placement:

• Dark post (standard): run the UGC from your brand page as a standard paid ad — most common approach
• Boosted creator post: boost an existing creator organic post directly — requires the creator to have posted it
• Partnership ad (formerly Branded Content): run the ad from the creator's account with your brand's ad account — higher authenticity signal, typically higher CTR

Partnership ads require the creator to grant you partnership permissions in their Meta settings. Worth the setup for your best-performing creatives — the "Paid partnership with [Brand]" label consistently outperforms standard dark posts for social proof.

How to Read Meta UGC Performance Data

The three metrics that matter most for UGC evaluation on Meta: Hook Rate (what percentage of viewers watch past 3 seconds), Hold Rate (what percentage watch to 25% or 50% of the video), and CPA (cost per acquisition or cost per purchase). Hook Rate tells you if your opening works. Hold Rate tells you if your message maintains interest. CPA tells you if the whole thing converts.