You can update a Microsoft Project file from the associated Project Management work plan when Project Management controls the work plan. Changes made directly to the Microsoft Project file are overwritten during this update.
You can enable the Plug-in for PPM to highlight the scheduled dates automatically changed by Microsoft Project in the Microsoft Project table view (see Enabling Highlighting for Work Plans Controlled by Project Management). When enabled, the highlight color is blue.
To update the Microsoft Project file from an associated work plan in Project Management:
Open the project in Microsoft Project.
Select PPM > Update Work Plan from PPM Project.