I've been using other tools for awhile and have to jump back into MS Project.
I started a high level plan with tasks and resources, however, I'm having trouble remembering the specifics around Task Usage work hours, resource availability and resource assignment.
In my resource sheet, I create a resource:
Resource Name = John Type = Work
In Resource Information, I set the following for John:
Available From Available To Units NA 9/30/2020 0% 10/1/2020 11/30/2020 20% 12/1/2020 12/31/2020 40%
I then created a task:
Name: Task1 Start: 10/1/2020 Finish: 12/31/2020 Start no earlier than 10/1/2020 Fixed Duration
I then assign resource "John" to task "Task1".
I then look at Task Usage with Timescale set to Months, and see the following:
OCT NOV DEC Task1 John 35.2h 33.6h 36.8h
Because I set availability to 20% for first 2 months and then 40% for month 3, I would have thought that I'd see:
Month 1 = 23 days x 8 hours x .2 = 22 x 8 x .2 = 35.2 Month 2 = 23 days x 8 hours x .2 = 21 x 8 x .2 = 33.6 Month 3 = 23 days x 8 hours x .2 = 23 x 8 x .4 = 73.6
But, Month 3 shows 36.8 (23 x 8 x .2)
Switching Timescale to weeks confirms that each week is showing 8 hours, even those in December.
I know duration, unit and work are related but can't see what I'm missing.
Why doesn't December show 73.6 hours?