On Fixed Duration task, duration will be fixed. If you change the units, work will be changed,
This means that adding Work or Units (Resources) to the task will not affect the Duration.
Example 1:
Tam works 8 hours per day from Monday - Friday; You set the Task Type as Fixed Duration. If you have task with 4 day duaration and task has been scheduled for 32 hours.
After you assign the task information as above, you realized that Tam will not available full time to work on this task. His availability is part time, he can work only 4 hours per day.
When you changed his units to 50%, Project keeps the duration fixed at 4 days, and recalculates work to be 16 hours.
Example 2:
Tam works 8 hours per day from Monday - Friday; You set the Task Type as Fixed Duration. If you have task with 4 day duaration and task has been scheduled for 32 hours.
If you increase the work to 80 hours; Project keeps the duration same and it increases the units to complete the work. See below example, Tam is now showing up with 250% units.
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