How a €100K/mo Meta Brand Cut CPA by 20% with Partnership Ads
Baby Love Growth spends €100K/month on Meta in one of the most competitive verticals, AI apps. They replaced just 1 of their 6 standard video ads with a partnership ad. The result: 20% lower CPA, 22% higher ROAS, and 40x return on their test investment in the first month. This case study breaks down their campaign structure, the numbers behind the shift, and why 3 out of 5 partnership ad creatives outperformed everything else they were running.
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What's inside the case study?
The campaign structure, the numbers, and what you can copy for your own Meta ads.
The before and after: what changed in the campaign
One creative swap. Same total budget. Meta's algorithm allocated the highest spend to the partnership ad on its own, no manual override needed. That single partnership ad lifted the entire campaign's performance.
The results: every metric that moved
Inside you'll see the actual screenshots of their Ads Manager, the full cost breakdown, total test investment, monthly savings, and how each metric shifted side by side. You'll also see exactly how much they spent on each creator video and what the ROI looked like after just 3 weeks.
Why it works, and how to replicate it
The case study walks you through how to set up your own partnership ad test, what to watch for in the first weeks, and how to scale it once you see the numbers move.
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