From the Home page screen
Select Create “+” sign (top middle)
Select “Receive Payment” under Customers heading
Select Deposit to “Undeposited Funds” account
This will create Undeposited Funds as debit balance on the current assets account of the Balance Sheet.
“Undeposited Funds” account balance is like a temporary clearing account.
In order to clear the balance sitting on Undeposited Funds Account, next step is to go to “Bank Deposit” (same + screen > bank deposit under “Other” header) and make deposit to applicable bank account.