Task slippage email notification includes open tasks

The Task slippage email notification notifies the project manager and engagement manager when a resource forecasts a later date than the date originally planned for a task, or a higher number of hours than the original planned hours for the task. Open tasks are included. 

To prevent slippage notifications for an open task, you can specify a large number of planned hours for the task or a longer duration.

Note: It is not good practice to create open tasks with durations of longer than one year.