Why should I enable customer deposits?

Enabling customer deposits makes it possible to account for deferred revenue—that is, cash receipts that are not applied to open invoices when they are received. When this option is enabled, two things will happen: 1) a customer deposit option will appear on the cash receipt screen and 2) your receivables account assignments screen will include a deferred revenue account option. This deferred revenue account will be used when customer deposits are posted. If you don't enable customer deposits, unapplied cash receipts will be distributed to a credit memo, which can be applied to an invoice at a later date.