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Project task dependencies

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Project task dependencies

A task dependency is created when one task is prevented from starting or finishing based on the state of another task.

The Project Management application supports several types of dependencies.

Task time constraints

The Project Task form includes a Time Constraint field, which can be either of these values: Start ASAP or Start on specific date.
  • If a task is set to Start ASAP: The task appears on the Gantt chart as starting when the dependency allows it. However, a task can start on a later date when a lag value is set for the relationship.
  • If a task is set to Start on Specific Date: The task appears on the Gantt chart as starting on the specified date. The start date of such a task is not impacted even after you put the task in a relation to another task, for example, FS relation.
    Note: The project property Retain start on constraint on tasks after adding relations controls the behavior for Start on selection. The property is set to True by default and is not editable.