A resource’s maximum units (Max. Units) value determines when the resource becomes overallocated.
The Resource Usage view enables you to see the details of assignments that cause resource overallocation.
You can manually or automatically resolve resource overallocations.
When editing a resource assignment value (such as assignment units), you can use a Smart Tag to change the scheduling effect of your action.
You can view cost details from the individual assignment level all the way to the entire project level.
The tasks on the critical path determine the project finish date.