Types of Date Constraints

Gantt chart activities may have date constraints that condition the start or end of these.

There are 8 types of date constraints for activities:

  • As Soon As Possible: Soft constraint where the task starts as soon as possible. This is the default constraint type.
  • As Late As Possible: Soft constraint where the task starts as late as possible, as long as it does not delay other activities.
  • Start No Earlier Than: Semi-soft constraint where the task starts on or after a given date.
  • Start No Later Than: Semi-soft constraint where the task starts on or before a certain date.
  • Finish No Earlier Than: Semi-soft constraint where the task finishes on or after a certain date.
  • Finish No Later Than: Semi-soft constraint where the task finishes on or before a certain date.
  • Must Start On: Strong restriction that the task must start on a specific date.
  • Must Finish On: Strong restriction that the task must finish on a specific date.

If you want to edit the constraint date of a task, you can do it by line item, simply by clicking on the "Constraint Date" field .

Remember that you can configure the visible columns in the Gantt, so if Constraint Type or Constraint Date do not appear, you can add them. Learn more at Columns - Gantt .