Undo Event
The Undo Event subfunction is used to delete one or more selected events along with their related data.
Applies to all currently selected events.
Execution Details
Event Deletion
The selected events are deleted from the system.
All related records of container loading/discharge are also removed from the Voyage card (if the event involved such operations).
After completion, a confirmation window is displayed indicating that the deletion was successful.

If the Event Is the Latest One
All containers within the deleted event are returned to their previous state.
The last entry in the container’s history is removed.
This behavior is equivalent to the Rollback Event action.
If There Are Later Events
Only the selected event is removed; subsequent events remain unchanged.
Container history related to the deleted event is removed.
In the next event, the Container Before Event entry is replaced with the Container After Event entry from the last event that occurred before the deleted one.