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Undo and Redo Your Actions on the Gantt Chart
You can undo up to the last 30 actions you've taken on the Gantt chart (i.e., creating a dependency or rescheduling a task).
You can undo your actions if:
Your workspace hasn't been refreshed.
You haven't switched to a different folder, project, or space.
To undo:
Click the undo button
in the Gantt chart's upper left-hand corner. If the button is grayed out, that means there are no actions available to undo.Alternatively, use keyboard shortcuts to undo your actions: Ctrl+Z (on Windows) or Cmd+Z (on Mac).
Note
When you make changes, task followers and assignees may receive Inbox and email notifications. When you undo your action, it's considered a separate change and may trigger another notification.
To redo the canceled action:
Click the redo button in the Gantt chart's upper left-hand corner. If the button is grayed out, that means there are no actions available to redo.
Alternatively, use keyboard shortcuts to redo the canceled action: Shift+Ctrl+Z (on Windows) or Shift+Cmd+Z (on Mac).
Note
Buttons are active until you switch to another view or refresh the page.