The Payment Received On Account Customer Entry screen Invoice Number Entry field (available only with Keystroke Advanced licenses) is used to locate a Customer based on the Sales Invoice Number.
When a number is entered, the customer that is assigned to that Invoice Number is located.
Note: Invoice Numbers are search back approximately 3 years since many stores don't keep older data readily available.
Pressing [Ins] from the Invoice Number Entry field displays The Invoice Lookup List. Select an invoice from the list to locate Customer to which it is assigned.
See:
Accounts Receivable Contents