Delay or advance a task

Delay or advance a task when the work on site runs behind or ahead of plan.

A delayed task affects the start date of the next task, if it has a successor. It may also delay the end date of the activity.

When Lean PlanDo asks for a delay reason

Lean PlanDo asks for a delay reason when a task has base dates. A task gets its base dates when it first falls in the Do week (the first week of the Lookahead, where tasks can be committed; it should be the current calendar week) of a generated Lookahead, or when it is created inside the Do week. They do not change after that. A task outside the Do week can also have base dates, if it was created in the Do week and then delayed to a date outside it.

When you move the start date of a task with base dates later, Lean PlanDo asks for the delay reason and the responsible party. This shows the real causes of delay so you can plan the right fix.

If the task was created outside the Do week, it has no base dates yet. Lean PlanDo does not ask for a delay reason or responsible party.

Delay or advance a task

1. In the Lookahead, double-click the task bar.
2. Click Edit (pencil icon).
3. Change the start date. An earlier date advances the task. A later date delays its start.
4. Increase the duration to delay the end date.

To advance a successor task, first turn off its dependency on the predecessor task.

Every change shows in the Masterplan and the Lookahead at once.

See past delays

To see past delays and their reasons, open the task's Delay history tab. It lists each change with the old and new start date, duration or due date, the reason, the responsible party, the description, who made it and when. If there are none, it shows No delay history found.

Drag the task bar

You can also delay a task by clicking its task bar in the Lookahead and dragging it to the date you want. You can move or extend a task this way, as you would an activity.

Delaying or advancing an activity works the same way. Read Delay or advance an activity to learn more.