About
Save the Children is one of the world’s leading humanitarian organizations. For nonprofits, social media marketing is a different proposition than ecommerce or B2B: The target audience isn’t being sold a product, but is asked to instead spend from their conscience. The organization partnered with OuterBox to improve its donor acquisition efforts on Meta while navigating the nuances of this challenging vertical.
Challenge
Meta was generating donation volume for the organization, but inefficiently. Suffering from a notably elevated cost-per donor, the account was spending substantially for marginal returns, with positive performance isolated to specific months. The Meta Ads account depended heavily on activity during Q4, when donations typically ramp up—though ad costs do too because of increased digital advertising spend across the platform.
The account structure was contributing to these inefficiencies. Donor and audience segments were split across too many campaigns, often competing against each other for the same users and diluting the signals the platform needed to optimize from. That fragmentation limited how far spend could scale without losing efficiency, and made it harder to reach new donors in the months between spikes.
Solution
The client wasn’t going to spend its way out of the situation. It needed a cleaner, more scalable approach. To achieve that, OuterBox had to fix the account structure and implement new approaches.
We launched Meta’s AI-driven Advantage+ campaign technology in March 2025, consolidating audience learnings across a broader pool instead of splitting them into narrow, competing segments. Campaigns were moved into a more unified framework, giving the platform’s delivery system a stronger, cleaner baseline to optimize from, even outside of high-urgency giving windows.
The standing retargeting and prospecting campaigns got the same treatment: tighter inclusion and exclusion lists, new donor and site-visitor segments, and less overlap between retargeting and lookalike pools. By giving each campaign a more clearly defined and discrete role, we increased the efficiency of each while gaining more control over the account’s performance.
+54%
Increase in Return on Ad Spend
+24%
Increase in Revenue
-21%
Decrease in Cost
Results
The impact of our changes was substantial. From March to December 2025, ROAS improved by 54% compared to the same span in 2024. Revenue rose 24% and donations rose 14% over that same period, while total media spend fell 21%, meaning the organization raised more money with less invested to get there. Cost per donation improved 31% across the same span.
These changes also scaled efficiently during the end-of-year giving frenzy. During November and December, often the busiest giving months of the year, return on ad spend improved 41%, donations grew 21%, and revenue grew 50% year over year—while cost per acquisition decreased by 12%.
Letting the Strongest Creative Flourish
Nonprofit creative works differently than a product ad—you’re trying to appeal to something, not just sell. The strongest campaigns paired urgency with hope through personal, human stories, especially messaging tied to foreign aid cuts and child nutrition. Creative that leaned only on urgency without a hopeful resolution underperformed, and creative that leaned only on impact without urgency did too.
With the newfound control that OuterBox created with our account restructure, we were better positioned to make swift changes to take full advantage of high-performing creative rather than spreading them across every campaign. When early performance returns told us that a pair of 60-second videos on malnutrition were delivering strong returns, we moved to run them exclusively inside Advantage+. Pairing the strongest material with the most powerful campaign technology allowed those ads to become the strongest donation drivers of Q2.
Validating Our Work
We used conversion lift studies to further validate that these improvements were incremental, finding a 53% increase in conversion lift and a 42% increase in sales lift. That confirmed that these approaches drove meaningful net-new donor growth rather than simply improving platform-reported efficiency.
A follow-up study after Advantage+ launched is the clearest example of what the restructuring brought: it spent 24% less and reached fewer people than the campaigns it was tested against, yet drove the same number of incremental conversions and 32% more incremental revenue, a 32% improvement in ROAS lift.
A More Sustainable Meta Ads Foundation
Our initiatives fundamentally improved the efficiency and sustainability of Save the Children’s donor acquisition strategy on Meta. Rather than simply increasing spend or layering on new tactics, we identified structural limitations within the account and made a deliberate shift toward signal consolidation and scalable campaign design.
By reducing reliance on high spend and seasonal spikes, the program shifted to a more balanced, always-on model that could drive consistent performance year-round. The account is now better positioned to handle both everyday acquisition and high-pressure moments like Q4, giving the client greater confidence in their ability to grow donations efficiently while maintaining impact over time.
