Complex sentence: The bookkeeper is responsible for ensuring that all transactions are recorded in the correct daybook, supplier's ledger, customer ledger, and general ledger; an accountant can then create reports from the information concerning the financial transactions recorded by the bookkeeper.
Split into simpler sentences: The bookkeeper is responsible for ensuring all transactions are recorded in the correct day book, suppliers ledger, customer ledger and general ledger. An accountant can then create reports from the recorded financial transactions recorded by the bookkeeper.