The Peak Units fields contains the percentage or number of units to which a resource is assigned at any one time for tasks as distributed over time.
There are two categories of Peak Units fields.
Data Type Percentage/Number
Peak Units (resource-timephased field)
Entry Type Calculated
How Calculated The value in the Peak Units field is the maximum effort a resource is working on all assigned tasks, as shown over a period of time.
Best Uses Add the Peak Units field to the timephased portion of the Resource Usage view when you want to display the maximum effort for which the resource is designated to work on all assigned tasks over the selected time period.
Example Jamie is assigned to one task at 25 percent, and to another task at 50 percent. These tasks are both scheduled to take place Tuesday through Friday. In the Resource Usage view, the value in the Peak Units field for Jamie is 75 percent for each day from Tuesday through Friday.
Peak Units (assignment-timephased field)
Entry Type Calculated
How Calculated The value in the Peak Units field represents the maximum effort a resource is working on an assignment in the given time period.
Best Uses Add the Peak Units field to the timephased portion of the Task Usage or Resource Usage view when you want to display the maximum effort for which the resource is designated to work on an assignment, as distributed over time. This is particularly useful when you have applied a work contour other than the default flat work contour. The Peak Units field shows the points in time in which more effort is being applied to the assignment.
Example You need to review the resource effort for various assignments as distributed over days. In the timephased portion of the Resource Usage view, you add the Peak Units field. For an assignment for three carpenters for five days, you see 300 percent in the Peak Units field across each of the five days. For an assignment for a part-time resource for two days, you see 25 percent in the Peak Units field for each of the two days.