• It helps project managers determine the shortest possible duration of their MS Project.

• Slack Calculation shows the level of flexibility that exists in your Project Plan.

• This automatic calculation helps to recover a schedule that's slipping.

• Total Slack is useful for your MS Project if a resource needs more time on a task, or if you want to assign a resource to another task.

• Slack Calculation feature works on any operating system: Windows, Mac, iOS, Android or any web browsers: Chrome, Safari, Internet Explorer, Firefox, Edge, etc. .