Revisiting overallocations

This is an important section, and your special attention is requested. In the previous chapter, you had a quick introduction to the concept of overallocation when we increased the units of a resource to 200%. Project, on its part, immediately escalated this issue to you with a red person overallocation warning symbol in the Indicators column. Since we are on the topic of resource assignment, let's now examine overallocations in a little more depth.

So, what is an overallocation again? When a resource is allocated more work than it can handle, then there is a potential risk to your entire schedule! And this risk is called an overallocation. Refer to the following screenshot, which shows one more way by which an overallocation can be caused. Observe in the Gantt Chart that the resource named Leonardo has been allocated two tasks for the same time interval:

Figure 5.8 – Observing a simple overallocation

There is an ambiguity...