Account-level monetary control decides reconciliation scopes, subsystem postings, and controller accountability—without naming custody, automation rearranges symptoms.
Receivables and payables fracture when customer-facing denomination diverges from chart custody without documented bridges tying proofs together.
ERP account configuration encodes identity populations FX batches consume—misassignment cascades through valuation engines silently.
Posting logic and account mapping translate subsystem facts into general ledger lines—when mappings drift, FX narratives blame markets instead of structural routing faults.
Currency master data governs precision, rounding, and activation—the mundane foundation auditors reopen when bridges implode silently.
Multi-currency ledgers amplify mismatch when local custody diverges from group methodology absent explicit governance.
Revaluation eligibility depends on which balances qualify as foreign versus functional-measured—ambiguous assignments distort batch populations.
Reporting integrity—in AccountCcy’s evidence vocabulary—inherits whichever fractures controllers tolerated at assignment time; investor packs cannot retrofit lineage absent upstream clarity.
Audit reconstruction demands postings reconcile to documented custody decisions—not improvised spreadsheets reconciling numbers without narrative coherence.
Monetary truth preservation—in doctrine terms—is reconstructable custody; State 04 is where external motion earns accountable internal identity.