Project has just let me increase the resources on two tasks, even though I have not got the resources available. It is not showing up an overallocation. eg task 1 - 2 resources Task 2 - 2 resources Task 1 and Task 2 are have a start to start constraint. I then increased those resources to 4 per task, even though I only have 4 resources to use. This should be an overallocation, but it is not showing. Have I managed to override the allocation somehow.