Some of the "Billing Categories" prevent a draft invoice from being generated if "None Specified" is selected on the Create Draft Invoices popup. I was disappointed to discover this after I spent hours creating them, only to discover that some (not all) billing categories did this, even if only one client was selected and it was assigned one of those billing categories. Very frustrating, needs to be fixed.
How often would you use this request?
every time I open a matter or generate a draft invoice