Customer orders are compared with the inventory master file to determine whether items ordered are in stock. Daily sales summaries are compared with control totals of invoices. Shipping documents are compared with sales invoices. Sales invoices are compared with the master price file. Customer orders are compared with an approved customer list.
Sales orders are prepared for each customer order.
Control amounts posted to the accounts receivable ledger are compared with control totals of invoices. Sales invoices are compared with shipping documents and approved customer orders before invoices are mailed. Prenumbered credit memos are used for granting credit for goods returned. Total amounts posted to the accounts receivable ledger from remittance advices are compared with the total of checks shown on the validated bank deposit slip. An employee, other than the bookkeeper, periodically prepares a bank reconciliation comparing the daily deposit slips to the cash receipts journal and accounts receivable subsidiary ledger.