Predecessors

To add or edit a task's predecessors:

Click on the task to open the Edit Task Pane.
In the Predecessors field , enter a task number and the two-letter dependency type code. The dependency types are detailed below.
Specify an amount of lag or lead time, if necessary. See Lag and Lead Time below for more information.
Click Save.

Note: If an error message displays, press Esc to dismiss the message and restore the previous Predecessors value.

Dependency Type

Add a dependency type by specifying SS (start-to-start) or FF (finish-to-finish). The default dependency (FS - finish-to-start) is assumed if nothing is indicated and does not display even if you include it explicitly.

To specify a non-default dependency, type that immediately after the task number:

1SS means that task 1 must start before the current task can start.
7FF means that task 7 must finish before the current task can finish.
5 means that task 5 must finish before the current task starts (this is the default FS finish-to-start dependency).

Lag and Lead Time

You can include a Lag (delay) or Lead (overlap) time for the dependency. Lag time is shown with positive numbers. Lead time is shown with negative numbers:

11FF+1

means that task 11 must finished before the current task can finish, and there is a 1 day lag after task 11 finishes before the current task can finish.

8-1

means there is a finish-to-start dependency (the default) between task 8 and the current task, and that 1 day before task 8 finishes, the current task will start.

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