Spreadsheet Failure ModeManual Workflow
Root Operational Bottleneck
Central incoming payments are applied from a receipts sheet that lists amount and payor, not a 3-way to subsidiary, invoice, and cash, so the wrong entity is credited.
Control Hazard & Audit Exposure
Incoming cash is applied to the wrong entity because the receipt sheet is not a 3-way match, and the invoice stays open on the entity that earned it.
Deterministic Software ReplacementClient-Owned Architecture
Central Receipt 3-Way Matcher that Applies Cash Only to Entity, Invoice, and Amount
Central receipt 3-way matcher that applies cash only when entity, invoice, and amount agree, and parks any break as an owned exception.
Continuous Assertion Rule
Receipt assertion: a central incoming payment cannot apply unless entity, invoice, and amount match, or the difference is parked as an exception with an owner.