How available to reserve is calculated in Reservations screen
I am using EBS 12.2.10 with database 19c (19.10.0.0.0) I need to understand when users enter lines in reservations screen, how available to reserve for every item is calculated? Even if user does not save record, for the next line available to reserve is deducted from previous line. I want to implement same functionality in order organizer lines screen. When users enter records in order organizer lines, available to reserve should be deducted from previous entered line(s) for same item.