Question about work order part lists - Closing lines

Hi to all

I would like to know how a line set as closed on WO issues is "marked" on F3111

I want this information in order to write a report that allow our users to identify closed orders with pending material (closed order with material not issued), so we can review and issue it before accounting that WO

currently I have one report for that, but I only compare quantities and when they replace an item with a similar one at issue time, they close the old line and add a non planned line, but my reports keep informing the closed line as pending