Write-offs for event types other than Billed Earned Revenue result only in memo accounting entries. These other even types include Billed Unearned Revenue, Billed Deposit, and Billed Vendor Refund. Using a Receivable (RE) modification transaction to reduce these lines to zero before referencing the Receivable on a Write-off (WO) transaction prevents such transactions from updating the credit history fields on the Customer Account Information table.