The staff and portal interfaces both support the notion of one time payments where the payment info is provided but not retained as a payment method or stored elsewhere. This option is available on a processor (more specifically a specific processor, paytype and virtual company) basis. The option is activated if HasPointofSale is set to 1 in a CC or echeck list.
In the staff interface, if activated, a staff member can use 'Payment > Process Credit
Card|Electronic Check' even when no Payment method is on file:
The BillMax Customer Portal offers a similar option for customers. 
Note: This option does write the encrypted card or bank account number to the transaction
table (efpstate) but the information is removed at the end of the
transaction.
