Additional Windchill Capabilities > Manufacturing Process Management > Working with the Manufacturing Gantt Explorer > Updating Constraints in the Manufacturing Gantt Explorer
  
Updating Constraints in the Manufacturing Gantt Explorer
The Manufacturing Gantt Explorer can be used to test various constraint scenarios. For example, to see what effect applying a constraint to an operation has on other operations, or on resource load levels.
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Constraints that are applied in the Manufacturing Gantt Explorer are only displayed in the Manufacturing Gantt Explorer, and are not saved back to the Windchill MPMLink database.
To update an existing constraint using the Manufacturing Gantt Explorer:
1. In the Manufacturing Gantt Explorer select the constraint you would like to update.
2. Select Edit > Update Constraint.
The Update Constraint window appears.
3. Enter a lag time.
The lag time defines how much time must elapse before the constraint is to take place.