The Start Date, Finish Date, and Duration are controlled by an automatic formula.
- A change to duration changes the finish date.
- A change to finish date changes the duration.
- A change to the start date changes the finish date.
The Start Date, Finish Date, and Duration fields also control the display of the task bars in the Gantt chart view. The Start Date, Finish Date, and Duration values can also change when you manipulate the activity bar in the Gantt chart.
If you clear the Start Date or Finish Date, then Unifier displays an alert notifying you that the fields are required. All of the date columns (uuu_P6Start ,uuu_P6Finish, and uuu_P6Duration) are required columns in the activity sheet. You cannot reset the Start Date or Finish Date, and Unifier displays an error message if you attempt to do so.
- If you enter a Start Date that is earlier than the Project Schedule Start Date (specified in the activity sheet properties), then Unifier displays the following message: "<uuu_P6Start> cannot be earlier than Project Schedule Start Date."
- If you update the Finish Date <uuu_P6Finish> with a date earlier than <uuu_P6Start>, then Unifier displays the following message: "<uuu_P6Finish> cannot be earlier than <uuu_P6Start>."
The Duration <uuu_P6Duration> and the Finish Date <uuu_P6Finish> values will change based on the activity sheet calendar selected. The Activity Calendar drop-down field will show all of the calendars that are defined at the project-level (which are located, by default, under Schedule Manager > Custom Calendars).
The Activity Status (uuu_P6ActivityStatus) value will be "Not Started," by default
The Start Date and the Finish Date values will show the Project Schedule Start Date, specified in properties, by default.
The Activity Type (uuu_P6ActivityType) value will be "Task Dependent," by default. You can update the task to "Resource Dependent' or "Milestone."