On the Machine Load page, so far you didn't have a chance to see whether the brown (scheduled) and red (full) days on a machine contain orders that will be late.

Now a small violet sign with a white exclamation mark tells you at first sight if you are in danger of running an order too late. There are two kinds of situation that this icon warns you about:

Orders Scheduled Late on a Machine
The violet icon tells you that there are orders threatening to be late on the machine in question and thus won't be delivered in time if nothing is done about them. When you click the icon the dialog displaying the day's orders opens, and orders scheduled late are marked by a red due date so you can easily find them to mend the situation.

Machine Load Is Too High to Produce Unscheduled Order in Time
The violet icon is also displayed when the machine load is higher than the machine capacity on that day (red background) and there is no chance to put the surplus load on any previous day, either, because the capacity on earlier days is insufficient. Therefore one or several unscheduled orders pre-planned on this machine can't be produced in time to meet their due date.

However, if you click the icon expecting to find the unscheduled late orders highlighted in the day details as well you might be disappointed: Unscheduled orders are not marked in red (except when their due date has passed) because the system can't predict which of them you will schedule on time using the available capacity on earlier days.