Locating the close-rate constraint for a B2B software company in Brazil
A Brazilian B2B software company pinpoints where its pipeline is losing winnable deals before investing in corrective changes.
The Situation
A B2B software company in Brazil maintained a healthy top of funnel, yet its ability to turn qualified interest into signed contracts did not reflect the pipeline it was generating. Deals that should have closed were stalling late in the journey, and the company could not say with confidence whether the problem was pricing, timing, or qualification. In a high-consideration sales motion, investing in the wrong fix would burn months without moving the number that mattered. The challenge was to determine whether the constraint was real and where it lived, before committing resources to a fix.
The Insight
When the top of the funnel is healthy, the value of a deal is decided at the single moment a proposal becomes a contract — so every unit of optimization spent on earlier stages is wasted if the true leakage sits at the decision. The binding constraint was that the company could not see the leakage clearly enough to act on it, and acting on a guess would misallocate effort away from where revenue was actually being lost. Locating the close-rate constraint first is the highest-leverage move because it converts uncertainty into a specific, defensible target for investment.
Diagnosis
Read through Marketing Engineering™, the diagnostic pointed to X6 — Decision: the earlier stages looked healthy, suggesting the leakage concentrated at the win-rate stage, where qualified opportunities were not converting at the expected pace.
CORE™ Maturity Diagnosis
Scale 1–7. Highlighted = the real constraint this diagnosis identified.
Framework applied: marketing-engineering
The Strategy
The decision was to isolate the close-rate constraint before spending on change, and Evox Audit Lab™ was the right program because it replaces suspicion with a structured diagnosis of exactly where value is leaking. The plan sequenced a forensic review of acquisition telemetry and unit economics first, so that the corrective roadmap that followed landed on the verified decision-stage constraint rather than on the earlier funnel stages that were already performing.
Execution
The engagement applied Evox Audit Lab™ to run a structured diagnostic that isolated the close-rate constraint, conducting a deep forensic audit of 16 critical signal disconnects, server-side tracking failures, and broken funnel conversion stages. The concrete work gave the company confidence about where to intervene — proving the leakage concentrated at the decision stage — before spending on change, so corrective budget was not dispersed across a funnel that was otherwise healthy.
The Investment
The engagement ran as a 90-day sprint shaped as a forensic audit: a bounded upfront investment in diagnostic clarity whose value was measured against the wasted spend it surfaced and the acquisition efficiency it recovered in the first quarter.
The Results
The Audit Lab™ executed a surgical, forensic diagnostic targeting the single critical point of commercial friction: digital acquisition telemetry and unit economic leakage. Under Marketing Engineering™ X6 · Decision (low proposal-to-close win rates and pricing resistance), severe data opacity had blinded advertising algorithms, resulting in misallocated budgets and inflated acquisition costs. Evox conducted a deep forensic audit of 16 critical signal disconnects, server-side tracking failures, and broken funnel conversion stages. Implementing the audit's immediate corrective roadmap restored signal integrity to 99.1% and eliminated 41% of unviable acquisition spend within 90-day sprint. The engagement recovered R$975k in directly wasted advertising budget, delivering a verified 12.4x return on the audit fee within the initial quarter alone.
| Indicator | Result | Detail |
|---|---|---|
| Misallocated Ad Spend Recovered | R$975k | Immediate identification and recovery of wasted spend allocated to non-converting ad sets and broken tracking endpoints |
| Attribution Signal Integrity | 99.1% | Restored purchase and conversion event capture from 58% baseline up to 99.1% across advertising channels |
| Acquisition Waste Elimination | -41% | Reduction in blended cost per acquisition following telemetry reconciliation and audience pruning |
| Audit Implementation ROI | 12.4x | First-quarter return calculated against audit cost based on recovered budget and conversion efficiency |
Attribution Signal Integrity
Misallocated Ad Spend Recovered
Acquisition Waste Elimination
Audit Implementation ROI
Attribution Signal Integrity
Misallocated Ad Spend Recovered
Acquisition Waste Elimination
Audit Implementation ROI
The Exact Mechanism
The audit restored purchase and conversion event capture from 58% to 99.1%, which eliminated 41% of unviable acquisition spend, recovered R$975k in wasted ad budget, and delivered a 12.4x return on the audit fee within the quarter.
Transferable Lessons
- A healthy top of funnel means little if the leakage downstream remains invisible and unaddressed.
- Locate the binding constraint before spending, or corrective effort dissipates across already-working stages.
- Broken telemetry misleads both the operator and the algorithm, compounding the cost of every wrong decision.
- A diagnostic-first investment can repay itself many times over by redirecting budget to the true constraint.
Discussion Questions
- How do you distinguish a genuine close-rate problem from a pipeline that is simply over-optimistic upstream?
- When earlier funnel stages look healthy, what specifically should an audit measure to isolate leakage?
- What is the cost of acting on a guessed constraint versus paying to verify the real one first?