LedgerOS · Phase 5 · M12

First Pilot Simulation

Fictional pilot company and the end-to-end lifecycle proving the LedgerOS architecture.

Pilot organization
Northwind Field Services

Northwind Field Services, LLC

Base currency
USD
Fiscal year start
Jan 1
Country
United States
Users & roles
Alex Owner
Owner
*
Rita Controller
Accounting Lead
accounting.*
Sam Ops
Operations Manager
operations.view
Priya Admin
Systems Admin
admin.view
Fiscal periods
FY2026 Q1
Open
FY2026 Q2
Future
FY2025 Q4
Closed
Chart of accounts
1000Cash — Operating
Asset
1200Accounts Receivable
Asset
1400Inventory
Asset
2000Accounts Payable
Liability
2200Sales Tax Payable
Liability
3000Owner's Equity
Equity
4000Service Revenue
Revenue
5000Cost of Services
Expense
6000Operating Expenses
Expense
Integration source
Key
serviceconnect
Display
ServiceConnect (pilot)
Endpoint
/api/public/integrations/events
Status
Configured
Event mappings
work_order.completedInvoice draft
payment.receivedPayment application
expense.recordedBill draft
refund.issuedCredit note draft
End-to-end lifecycle

No shortcut is permitted at any stage. External systems only interact via the Financial Event Bus.

  1. 1
    Operational Event
    ServiceConnect emits work_order.completed for Job #WO-1042.
  2. 2
    Financial Event Bus
    POST /api/public/integrations/events — recorded on financial_events with idempotency + correlation.
  3. 3
    Validation
    Payload schema + tenant + source authenticated. Duplicates short-circuit.
  4. 4
    Mapping
    integration_event_mappings resolves work_order.completed → invoice draft.
  5. 5
    Approval
    Rules or a human accountant approve the event. AI is advisory only.
  6. 6
    Materialization
    materialize_financial_event creates the invoice via existing engine.
  7. 7
    Financial Object
    Invoice draft appears in the invoice workspace, awaiting standard controls.
  8. 8
    Accounting Engine
    Posting creates balanced journal lines. Trial balance ties.
  9. 9
    Reports
    P&L, Balance Sheet, and AR aging reflect the new activity.
  10. 10
    Metrics
    Canonical metric values refresh with lineage + confidence + freshness.
  11. 11
    APEX Insight
    Executive experience surfaces the change through intelligence adapters — no direct ledger access.
Invariants
  • • The pilot profile above is presentation data — activation happens through Customer Onboarding.
  • • No direct external → journal path.
  • • Materialization is the only writer to financial objects.
  • • AI is advisory-only.
  • • LedgerOS remains the independent financial operating system.