Deleting
Deleting a recurring assignment erases all future instances of the assignment, and changes past ones into non-slot assignments. If you've entered an assignment incorrectly, deleting it is the best course of action. To delete the assignment, right-click on it and select Delete.
Canceling
Canceling the recurring assignment cancels all future assignments within it, and does not affect past ones. To cancel the assignment, right-click on it, select Recurring assignment, then Cancel. VSys will prompt you for the effective date of the cancelation. All individual assignments within this recurring assignment on or after this date will be deleted and the recurring assignment itself will be marked as canceled.