A useful number is one you can explain. Follow posting references from operational documents to balanced journals, and review your business through the general ledger, trial balance, profit and loss and balance sheet.
Review customer statements and aging, record collection follow-ups and manage supplier settlement with branch and period controls. Posted corrections use documented reversals rather than disappearing history.
Currency and exchange-rate evidence depend on the workflow. Your accountant should review account mappings, periods, tax treatment and report scope before relying on statements. ObboPOS supports financial control; it is not a substitute for professional accounting review.