ACA SOURCE-SYSTEM INVENTORY Reporting year: Inventory owner / version: ONE ROW PER DATA FAMILY Fact or data family: Authoritative system / named owner: Backup owner: Available historical start and end dates: Point-in-time, events, or period data: Extraction timestamp field: Effective start / end fields and date conventions: Person key / employer key / crosswalk location: Export format / field-definition document: Blank-value meaning: Delivery frequency / controlled location: Reconciliation rule: Sample received / gap discovered: SOURCE CONFLICT Internal person or employer reference: Fact and affected period: Value A / source A: Value B / source B: Decision / reason / reviewer / date: Source-system fix or documented override: Next export verified: CHANGE TRIGGERS Payroll conversion / administrator change / new entity / plan change: New owner notified / inventory refreshed: