I need to stop allow editing on purchase lines when its confirmed (Purchase Order → Purchase → Confrim/Confirmation) , like when the order invoiced, the lines are not editable.
So you submit a PO to a supplier, it locks it, the supplier tells you they cannot deliver on that date or that quantity, what do you do?
As for the “confirm” of the line there is not one, when you exit off it if you give the user no ability to change it, or delete it, they will change this because it is so restrictive.