Microsoft KB Archive/113817

= A recurring task is rescheduled in Project if the summary task has a predecessor =

Article ID: 113817

Article Last Modified on 1/18/2007

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APPLIES TO


 * Microsoft Office Project Professional 2007
 * Microsoft Office Project Standard 2007
 * Microsoft Office Project Professional 2003
 * Microsoft Office Project Standard 2003
 * Microsoft Project 2002 Professional Edition
 * Microsoft Project 2002 Standard Edition
 * Microsoft Project 2000 Standard Edition
 * Microsoft Project 98 Standard Edition
 * Microsoft Project 4.1 Standard Edition
 * Microsoft Project 4.0 Standard Edition
 * Microsoft Project 4.0 for Macintosh

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This article was previously published under Q113817



SYMPTOMS
In Microsoft Project, if a summary recurring task has a predecessor, and you change the Start date of the predecessor to a later date, the first occurrence of the recurring task is scheduled for a different day than the one originally scheduled. If the predecessor task slips far enough in the future, eventually all occurrences of the recurring task will be scheduled to a different date and all occurrences will be on the same date.

For example, if you insert a weekly recurring task that occurs every Tuesday, and you link the summary recurring task to a predecessor task with a duration of one day that starts on a Monday, if you then move the predecessor task to Wednesday, the first occurrence of the weekly recurring task is scheduled for Thursday instead of the next Tuesday.



CAUSE
Each occurrence of a recurring task gets scheduled with a Start No Earlier Than constraint. There are, however, no task dependencies between each occurrence to force each occurrence to always maintain a set amount of lag from its preceding occurrence. Therefore, as dates push later, the slack time between each occurrence is reduced until all occurrences begin on the same date.



WORKAROUND
To move a summary recurring task and all the recurring task occurrences as a group, do the following:

Microsoft Project 98/2000

 * 1) Select the summary recurring task.
 * 2) From the Project menu, choose Recurring Task Information.
 * 3) Under Length, in the From box, enter the new start date for the recurring task. Choose OK.

Additional query words: PRJ2002 PRJ2003 PRJ 2007 prj2000

Keywords: kbbug kbpending kbusage KB113817

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