Roll-up Values Are Not Being Recalculated in Microsoft Project
In Microsoft Project, there are two scheduling modes: automatic and manual. By default, a project is in automatic scheduling mode and roll-up values are automatically recalculated. If, for some reason, the project is in manual scheduling mode (see Manual Scheduling Mode in Microsoft Project), then you can do one of the following:
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Set the project to automatic scheduling mode.
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Select
F9
to recalculate roll-up values.
Note: If the work plan is Project Management-controlled, you may not want to recalculate the roll-up values. Recalculating the roll-up values results in changes to project dates.