The accounts must be managed on an open item basis .

The accounts that can be cleared automatically must be defined in Customizing for Financial Accounting .

The items to be cleared cannot trigger a posting, for example, cash discounts or exchange rate differences.

The items cannot be special G/L transactions. You use special functions to clear these items. For more information about clearing special G/L transactions, see Special G/L Transactions: Down Payments and Payment Guarantees