Case 03Ecom · Sustained Performance

24% cost-per-purchase reduction.

A D2C account where cost-per-purchase dropped from $11 to $9 month-over-month, a 24% reduction. 243 purchases generated on $2,071 of ad spend in July 2026, against the same operating cadence and the same intelligence layer.

Current Month CPP

-24%

MoM CPP Reduction

$11

Prior Month CPP

243

Purchases / Month

The Engagement

Performance-based-Tier engagement with cost-per-purchase tracked as the primary diagnostic KPI. CPP improvement is the case for what the Viestri system produces when given time to compound. Month one is execution. Month two is iteration. Month three onward is where CPP starts to fall as creative learnings stack and audience structure tightens.

Operating cadence

Prior month CPP: $11
Current month CPP: $9 (24% improvement)
Creative pattern analysis isolated top-performer attributes carried into next iteration
Audience structure tightened against historical converter data
Daily MCT logging across 87 reporting cycles in July 2026

Why CPP improvement compounds. The intelligence layer feeds back into itself. Each month's top creative becomes the template for next month's brief. Each month's best converter audience becomes the base for next month's lookalike. The system is not magic. It is documented iteration on top of documented baselines.

Source: Viestri MCT, July 2026, 87 daily reporting cycles. Anonymized; verification under NDA available.

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