Constraints
A constraint defines the schedulable date range for a task. The date range is created by the constraint date and constraint type. The constraint type restricts the event start / end dates to be not earlier than, not later than or equal to the provided constraint date.
OnePlan constraint types include:
Must start on: the task must start on the date provided.
Must finish on: the task must end on the date provided.
Start no earlier than: the task has to start on or after the date provided. Used in forward scheduled projects.
Start no later than: the task has to start before (or on) the date provided. Used in backward scheduled projects.
Finish no earlier than: the task has to finish on or after the date provided. Used in forward scheduled projects.
Finish no later than: the task has to finish before (or on) the date provided. Used in backward scheduled projects.
To set up constraints:
Go to the task contextual menu > Advanced Edit > Advanced.
Select the constraint type from the Constraint Type menu.
Set the constraint date in the Constraint Date field.
Click SAVE.