Microsoft KB Archive/103760

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Project: Task with Elapsed Duration Not Correctly Updated

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Q103760

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The information in this article applies to:


 * Microsoft Project for Windows, versions 3.0, 3.0a, 4.0
 * Microsoft Project for the Macintosh, version 3.0

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SYMPTOMS
The duration of an elapsed task may not be correctly updated when you enter actual start and actual finish dates. This typically occurs when the actual start and finish dates are different than the scheduled dates.

WORKAROUND
To correctly calculate the duration, you can first enter the correct scheduled start and scheduled finish dates and then mark the task 100% complete. Alternatively, you could use a 24 hour calendar, set your preferences (Options, Preferences) to a 24 hour day. or you can unfix the task.

Steps to Reproduce Behavior

 * 1) Enter a task called task1, with a duration of 1ed.
 * 2) From the Options menu, select Project Info and set the Schedule Start date to 7/16/93.
 * 3) From the Edit menu, select Form. Choose the Actual Date button.
 * 4) Enter an Actual Start of 7/16/93 8AM and an Actual Finish of 7/18/93 8AM and choose OK.

The duration is calculated as .67ed. The correct duration is 2ed.

Microsoft Project is doing a partial calculation of the duration which involves the project's base working calendar and a 24 hour day. In the example above, Microsoft Project considered that each working day equalled 8 hours out of a total of 24 hours. The ratio of 8/24 = .33. Two days at this ratio equals .67; thus the .67ed duration.

If you unfix the task, Microsoft Project finishes calculating the duration of the task and in the example above, the duration changes to 2d which is the number of working days given the dates entered and the base calendar.

Additional query words: 3.00a

Keywords :

Issue type : kbprb

Technology :