How Brunner & SWYM Used Supply Control to Lower CPA 14% for Leading Consumer Fintech

The challenge

A leading consumer fintech platform focused on helping users build credit was running display campaigns to drive lower-funnel conversion events – including product engagement, account sign-ups, and confirmed activations – but performance was constrained by rising costs and inefficient media delivery.

Pre-SWYM, campaigns showed high CPMs and CPCs, with inconsistent cost-per-conversion across the funnel. While conversion volume was meaningful, efficiency lagged, with significant spend flowing to inventory that did not translate into high-quality account sign-ups or confirmed activations. Performance also fluctuated day-to-day, limiting the team’s ability to scale efficiently while maintaining stable CPA targets.

The core challenge was not scale, but efficiency: reduce cost per acquisition while increasing total qualified conversions—without increasing spend. This required improving how media dollars were allocated across the supply chain, prioritizing inventory that consistently drove high-intent users and measurable account outcomes.

The solution

The brand partnered with SWYM to improve efficiency at the source – before bids were placed. Using AI-driven supply shaping, SWYM analyzed real-time performance signals across the funnel (site engagement, account creation signals, and confirmed user activations) and applied them directly to bidstream decisioning.

SWYM dynamically evaluated and prioritized supply across SSPs, domains, and placements – concentrating spend on inventory proven to drive conversions while suppressing low-performing paths upstream. This created more efficient, consistent delivery without requiring changes to audience strategy, creative, or budgets.

The results

By applying SWYM’s AI-driven supply shaping and continuous optimization, the campaign achieved:

Outcomes & Efficiency

0 %

Lower CPA

(Post-activation)

0 %

Lower CPM

Supply-Chain Simplification

0 %

Fewer SSPs used

reducing fragmentation

0 %

Fewer domains

improving quality & brand safety

These results demonstrate that applying AI-driven supply shaping in CTV environments can simultaneously improve efficiency, increase conversion rates, and simplify the supply chain – delivering more predictable and scalable acquisition performance.