An internal auditor in a small broadcasting organization was assigned to review the revenue collection process. The auditor discovered that some checks from three customers were never recorded in the organization's financial records. Which of the following documents would be the least useful for the auditor to verify the finding?
To verify the finding that checks were not recorded in the organization's financial records, the auditor would find bank statements, copies of sales invoices, and copies of deposit slips useful. Bank statements can show whether the checks were actually deposited. Copies of sales invoices can be matched with the recorded transactions to identify any discrepancies. Deposit slips can provide evidence of the deposit of funds. Customer confirmation letters, on the other hand, would be the least useful because they primarily serve to confirm the amounts owed by customers rather than verify the receipt and recording of payments.
B. Customer confirmation letters would be the least useful document for the auditor to verify the finding in this scenario.