I update our construction programme every week to show the activities that have taken place during the past week. So every time an activity didn’t start on its scheduled start date, its start date will just move to the data date. But time to time, our site team always said that they cannot start some of the activities on the start date as shown in the programme so they want to move it in a later date. But of course if I do that, the start and finish dates will now be different from our baseline programme. Is it fine to change the start date and sequence of future activities when the site team wants it or just stick to the original schedule?