The Challenge: The "Holiday Season" Risk
For marketers globally, Q4 is the most expensive time to advertise. In the Netherlands, this peak centers around Sinterklaas, a massive gifting holiday in early December.
UGC.nl wanted to capitalize on this moment with a culturally relevant hook: a "Pete" character offering a discount. The goal was to blend natively into the festive feed while still driving hard sales.
But mixing entertainment with a sales message is risky. If it's too subtle, nobody stops. If it's too "salesy," they scroll past. The team had 6 concepts, ranging from a podcast setting to a whiteboard explanation, but no certainty on which one would survive the Q4 clutter.

"As the market leader, we need to set the standard. We didn't want to hope it worked. We needed an insurance policy for our media budget."
The Solution: Buying Certainty
UGC.nl used the BrandPulse Silver Package to gain control over their campaign outcome.
- The Brandpulse Way: We don't ask what people think (opinions); we measure what they do (behavior).
- Metric: Stopping Power (SPR), Attention Holding (AHR), and Engagement (QER).
- Validation: 35,022 Human Audience Signals (95% Confidence Level).

Testing methodology
The objective: find the asset with the highest Stopping Power Rating (SPR), the proportion of people who notice and engage after an asset captures their attention.
The Verdict: A "Unicorn" and a "Liability"
The data provided immediate clarity. Video 1 (The "Podcast" Piet) was a proven winner, while Video 4 (The Close-up) was identified as a liability.
Insights: Decoding the Behavior
Our analysis revealed why the winner worked, giving the team a blueprint for future assets:
1. Format Mimicry (The "Anti-Ad"): Video 1 featured the holiday character in a Podcast setting. This signaled "entertainment" rather than "sales pitch," successfully bypassing the viewer’s mental ad-blocker.
2. Eye Contact is King: The actor's direct gaze created a "Parasocial Bond," triggering an immediate biological stop response.
The Outcome: Complete Strategic Control
The test transformed the campaign from a gamble into a calculated execution.
- 100% Efficiency: Zero media budget was allocated to the failing Video 4 and Video 2. Every euro went to high-retention assets.
- Algorithm Advantage: By feeding the platforms high-retention content (Video 1), UGC.nl lowered their CPMs and maximized reach.
- Asset Rescue: The data saved Video 3 (Low Stop, High Engagement) from the trash, repurposing it as a highly effective retargeting asset for warm leads who understood the context.