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Resolving resource over allocation

A resource is over allocated when it is assigned too much work to complete within the resource available time. You can resolve resource over allocations by adjusting either tasks or resources in your project.

Under „Messages” Massages in the „Navigation” area Layout you get a warning for every over allocated resource. Over allocated resources are also marked red by default in the „Resource Sheet” view.

A resource overallocation can be caused by:

  • A resource assigned to work full-time on more than one task at the same time.
    For example, if you assign a full-time resource to two tasks of eight hours each on the same day, then the resource is over allocated because only one eight-hour task can be accomplished on that day.
    To view a resource workload, choose „Resource Usage” > „Work Table” in the „Views” toolbar icon. Look at the number of tasks assigned during times of over allocation.
  • Increased duration of tasks.
    If you increase a tasks duration, then the amount of work assigned to the resource also increases and may cause the resource to have too much work at one time. To view a resource workload, choose „Resource Usage” > „Work Table” in the „Views” toolbar icon. Look at the number of hours of work assigned.
  • Decreased unit availability for resources.
    For example, a resource availability is reduced from 100% units to 50% units because it is working part-time. Or, more specific non-working time is entered on the resource calendar.
    To see if non-working time is entered on the resource calendar, select „Working Times...” from the „Edit” menu at the top of your screen or use the Working Times toolbar icon and choose the calendar which is used for the resource.