Projects → Task Plan → Viewing Options → Gantt Chart → Showing critical tasks
In any task plan, the critical path represents a task (or a series of tasks) that must be finished on time in order for the task plan to be finished on time. The critical path is based on the longest possible sequence of tasks, factoring in their start dates, finish dates, dependencies, and constraints, and then comparing the calculated finish date of the last task in the sequence to the planned finish date for the task plan. The critical path is shown in red in a task plan. Any task on the critical path is a critical task. When a critical task is delayed, it nearly always results in a comparable delay to the finish date of the task plan. A task plan can only be considered 100% complete when the last task in the critical path is finished.
To show critical tasks
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