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Activity Relationship Details

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If you have the required privilege, you can use Activity Relationship Details to

You can also add and edit activity relationships in the Activity Table and Gantt chart that appear on the Projects > Activities page. For more information, see Add, edit, or delete activity relationships.

Field Definitions

Project ID
The unique identifier for the project to which the predecessor or successor activity belongs. If not the ID of the project with which you are working, the activity you selected in the hierarchy has an external relationship. An external relationship represents a dependency between activities that belong to different projects.
 
Activity Name
Name of the activity that is a predecessor or successor to the selected activity.
 
Relationship Type
Identifies the type of dependency that exists between the selected activity and its predecessor or successor:

Finish to Start - The successor activity cannot start until its predecessor finishes
Finish to Finish - The successor activity cannot finish until its predecessor finishes
Start to Start - The successor activity cannot start until its predecessor starts
Start to Finish - The successor activity cannot finish until its predecessor starts

Lag
The delay between the start or finish of one activity and the start or finish of another. If the selected activity has a finish-start successor with a 3-day lag, the successor activity cannot start until three days after the selected activity has finished.

Lag can be positive or negative. Using the previous example with a lag of –3, the successor activity could start three days before the selected activity finishes. Negative lag is also called lead.

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