Hi, I have a project that is pretty complicated with many linking tasks. The critical path contains tasks that have slack and changing the dates/duration does not in fact change the end date of the project. The critical path is unnecessarily highlighting many tasks that are not in fact critical. Does any one have any suggestions as to why this might be and what I could try to remedy this.

Any help would be greatly appreciated.

To see the true critical path, in project go to file / options / advanced, scroll to the bottom and uncheck ‘Calculate multiple critical paths’

All tasks must be linked, set to auto-schedule and have no links to summary activities/tasks.

Hope that helps