An enterprise resource planning (ERP) system is technically "live" when users can successfully log in and process transactions. However, for finance, audit, and governance professionals, an ERP is only successfully implemented if the organisation can reliably reconcile its cash, close its ledgers, preserve access controls, and produce an auditable set of financial statements. Case in brief In 2018, Birmingham City Council approved plans to replace its legacy SAP systems with Oracle for finance, human resources, and procurement. During the design and build phases, the programme departed from its original "Adopt not Adapt" principle, opting instead for extensive software customisations to fit existing legacy workflows. The system went live in April 2022. Post-implementation, core accounting functions were severely impaired. The Council lost the ability to execute timely, accurate bank reconciliations or rely on its management information. This heavily delayed th...