This option should be used when the timeline of the overall initiative should be controlled by the timeline of the milestones and sub-milestones that are associated with it.\
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For example, if the end date of a milestone needs to be extended because that part of the project is taking longer than originally thought, using this setting will trigger the initiative end date to extend as well.\
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If this option is selected for the initiative, the same relationship is established between any sub-milestones and milestones as well.\
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Note: With this dependency option enabled, you will lose the ability to select a start and end date for the initiative. The initiative will never be longer or shorter than the earliest and latest milestone dates.