As the project progresses, many changes occur in project data. Then the original baseline project that you have created may not accurately measure performance against the current project. And you cannot create a new baseline to measure the accurate results as some data Some of the changes may occur like:changed during the life of the project. Drop/Addition of activities Modified dates, costs, resources, steps, documents, relationships, notebooks, documents, codes etc. Modified Details, documents, risks, thresholds, calendars, codes Using the Update Baseline feature, you can update the original baseline plan with new project updated data, while updating you can choose the fields that you want to update or you can apply a filter to update activities that meet the filter’s criteria. How to update a baseline? Open the project whose baseline you would like to update, Go to Menu bar, choose Project, and maintain baselines. In the Maintain baseline dialog box, s