Used to add, modify, and delete transactions in the system. These are the day-to-day jobs that the accounting clerks perform every day. E.g. to enter quotes, sales orders, sales invoices, receipts, purchase orders, purchase invoices, payments, write checks, time and expense tickets, payroll transactions, and General Journal entries. You can also calculate finance charges, select bills to pay, select employees to pay, make inventory adjustments, reconcile bank statements, void checks, enter action items, post and un-post information to the general ledger (balance forward), change the accounting period, close the fiscal and payroll years, and purge inactive items and old transactions.