CASE STUDY — END STATE
The billing platform after the current transformation completes. Three areas fully transformed, directional KPIs at target, dead code paths removed.
The architecture below is what production looks like when the current roadmap finishes. Three areas transformed, key metrics at target, and a foundation ready for provider-agnostic domain ownership.
New capabilities across the board. Billing history shows resolved vs paid status. Bad debt payment isolated. Admin panel recompute. Business observability dashboards. Second payment provider path corrected. Unified checkout for account setup.
Pay-before-commit for all subscription mutations. Single collection path. Explicit payment outcome matrix covering every case. Entitlement sync simplified from bidirectional to unidirectional.
One recompute function reads all shared stores, computes correct state, applies the delta. Consolidated event handling. Temporal orchestration. Multiple legacy event processors removed.
| Initiative | Area 1 | Area 2 | Area 3 |
|---|---|---|---|
| Payment Flow | Second provider fix | Payment pipeline, entitlement sync, outcome matrix | — |
| Collection Recovery | History fix, admin panel, bad debt endpoint, observability | Cancellation delegation | Recompute engine, unified handler, orchestration, observability |
| Unified Checkout | Account setup | Single flow | — |
| Metric | Direction | Delivered by |
|---|---|---|
| Rollbacks / day | High → Zero | Payment Flow — nothing to roll back when payment precedes commit |
| Bad debt from upgrades | High → Zero | Payment Flow + Collection Recovery intersection |
| State disagreements | High → Zero | Collection Recovery recompute — one engine sees everything |
| Invoice coverage | Low → Complete | Collection Recovery unified handler — every event path covered |
| Dead code paths removed | Zero → Multiple | Payment Flow + Collection Recovery — legacy handlers deleted |
The KPIs are directional, not numeric. The point isn't the starting count — it's that each metric has a structural cause and a structural fix. When the architecture changes, the failure mode becomes impossible, not merely reduced.
The current work is targeted. These layers stay the same: non-recovery event processors, the payment provider integration layer, message queue infrastructure, the access control API, and downstream services that consume entitlements.
Three areas transformed, KPIs at target, dead code paths removed — a billing platform that sees everything and commits nothing without payment.