QuickBooks Default Information
From KB
Customer Name: 111-Payment Application Default is a customer automatically created by the payment application for the purposes of testing and error handling. Do not delete this customer, as it is mandatory component of the program.
Bank Account: Select a default bank account. If you would like transactions automatically deposited to the selected bank account in QuickBooks, select "Deposit to this account". Otherwise, transactions will remain in undeposited funds until reconciled.