Set Date Constraints

While dependencies usually drive activity dates, real-world restrictions (like material delivery dates or site access windows) sometimes require an activity to stay fixed. Applying a constraint allows you to tell the system, for example, that an activity "Must Start On" a specific date, even if the previous work finishes early.

• Required User Permissions: 'Standard' level permissions or higher on the project's Scheduling tool.

• Note: Over-constraining a schedule can hide the true critical path. Use constraints only when logically necessary.

1. Navigate to the Scheduling tool.

2. Locate the activity you wish to restrict.

3. Use one of the following methods to apply a constraint:

   • Graphical Move: Click and drag the center of the Gantt bar. This automatically applies a "Start no earlier than" constraint (indicated by a semi-circle icon on the bar).

   • Task Details: Double-click the Gantt bar to open the edit activity modal. Go to the Advanced tab and select a Constraint Type and Constraint Date.

   • Grid Entry: Locate the Constraint Type and Constraint Date columns in the grid and enter the values directly.

4. Click Save or press Enter.