Spreadsheet Failure ModeManual Workflow
Root Operational Bottleneck
In-house bank statements are assembled by pasting subsidiary cash into a house-statement workbook, so a missed paste leaves the statement disagreeing with activity.
Control Hazard & Audit Exposure
Subsidiary statements disagree with house activity after a missed paste, and the entity cannot see which house posting is missing.
Deterministic Software ReplacementClient-Owned Architecture
In-House Statement Engine that Issues Only When Activity Ties to the House Ledger
In-house statement engine that builds each subsidiary statement from house-ledger activity and withholds issue until the statement equals that activity.
Continuous Assertion Rule
Statement assertion: an in-house bank statement cannot issue unless every line equals house-ledger activity for that subsidiary, currency, and period.