Impact of billing frequency and invoice cancellation or deletion on E-WIP statement returning a value of "Not Classified"

QUESTION: What is the logic behind “not classified” when the Billing Management tool is run? These files should have been marked as “to bill” as they have available WIP. We have had to manually modified them.

RESPONSE: The billing intention shown on the WIP statement, is the result of the billing frequency set-up decisions made in matter properties. In addition, Matters listed on the E-WIP statement that had an invoice generated which was subsequently deleted or cancelled, will be updated with a billing intention of “Not-Classified” until the billing management tool is executed, or the user updates it with a new billing decision.