Hi - I think they are essentially comment fields - you can use them in reporting, compare other dates to it, but as far as I can tell, they have zero impact on the project schedule. The original idea for the business case (as I was told) was that you can use the business case as part of portfolio management to define the basic parameters of a project before building out a task plan. The sequence of events for a project would be: Request Management process - Convert request to a project - Build and consider the business case - if the case makes sense, build the detailed task plan. They are reporting fields as far as I can tell. Thanks, Eric