The pain
A deal closes in the CRM, a contract is signed, invoices go out, commission is paid. Four systems that should agree — and quietly don't. Revenue that's counted but never collected; commission paid above plan; the same revenue booked twice.
Why it persists
Each system is correct on its own terms. No single tool sees across all four, so the disagreements between them are invisible — and what no one can see, no one fixes.
The method
Reconcile the systems against each other, classify every unexplained variance by type, and price it. A calibration layer with planted, known leaks proves the detection catches everything and invents nothing.
The proof
Against the ground-truth ledger, detection reaches 100% precision and 100% recall — zero misses, zero false alarms — surfacing €4.6M across 267 leaks in six categories. The full pipeline is on GitHub.