recognise the division of the ledger into the sales ledger, the purchases ledger and the nominal (general) ledger

update the cash book for bank charges, bank interest paid and received, correction of errors, credit transfers, direct debits, dividends, and standing orders

prepare purchases ledger and sales ledger control accounts to include credit purchases and sales, receipts and payments, cash discounts, returns, irrecoverable debts, dishonoured cheques, interest on overdue accounts, contra entries, refunds, opening and closing balances (debit and credit within each account)