Closing the day should not depend on memory. Review the sales recorded, compare cash and mobile-money totals with the system, check credit sales separately, and note any refunds or corrections.
A POS gives the owner a daily record that can be checked before staff leave. KobStore also carries the sale history into reports, so the owner can review the day without reconstructing every transaction from loose notes.
Use the closing routine consistently. Investigate differences early, while the transaction details and staff recollection are still available.