Modify Tasks in the Task List Gantt Chart

The Task List Gantt chart provides a graphical representation of the durations and sequence of tasks across a timeline. You can modify tasks and task milestones directly in the chart. You can add tasks, adjust their durations and dates, and sequence them by creating task hand-offs. Hover over a task to view its start date, finish date, and its duration. For task milestones, you can create hand-offs and view the milestone finish date.

To modify task details in the Gantt chart:

In the object selector, select a project or program.
In the sidebar, hover over  Tasks, and select Task List.
Select the  Gantt icon.
In the Gantt chart, you can make the following changes:
- To create a task, right-click a row, and then select Add Above or Add Below. Enter a task name.
  Note: If you want the task to be a milestone, select Task Milestone in the Type column. Task milestones appear as diamonds in the chart.
- To modify a task's start or finish date and its duration, select the left edge or right edge of a task bar and drag it to a new date. The new date and duration are shown next to the bar as you drag it.
- To modify a task's start and finish dates without changing its duration, select the middle of the bar and drag it to a new date. The new start and finish dates are shown next to the bar as you drag it.
- To add a task hand-off, hover over the left edge or right edge of a task bar. Select the circle that appears, and drag it to an edge of a different task bar. A popover shows the proposed hand-off relationship. You can also do this for task milestones.
- To delete a hand-off, right-click a hand-off line, and then select Remove Hand-off.
- To delete a task or task milestone, right-click a task bar or diamond, and select Delete.
All changes made to this page are saved automatically.

Tips

You can select multiple task bars and edit their durations or dates at the same time.
You cannot modify the dates or duration of a completed task. You cannot modify the dates or duration of activity bars.
If a task is part of a hand-off chain, changing its due date directly, accepting a proposed due date, or setting a new committed due date will cause the task and other tasks in the chain to be moved. The current hand-off mode determines the movement of a hand-off chain when any of the tasks in the chain are modified:
-  Keep Hand-offs: Maintain hand-off logic, but allow for the addition or consumption of slack between tasks.
-  Break Hand-offs: Only maintain hand-off logic until the slack between two tasks reaches zero.

Next: Assign a Constraint to a Task on the Task List Page