I have a similar problem to the one described by WhitneyLee. I am using Office 2013. I am attempting to use the Import Wizard merge function to update start/finish dates. I did the following:
1 - created the task list in my mpp by copying/pasting from my Excel workbook. I am unable to use the import wizard to create .or append tasks, as I have several categories of tasks (all with sub-tasks) spread over multiple worksheets (e.g., I am creating a phase-based project plan that includes initiation, planning, readiness, execution, and post-execution phases). Most worksheets have tasks in all phases. So, to create the mpp, I started with a task called "Initiation" as a summary task, then copied/pasted tasks from each of the worksheets as sub-tasks to "Initiation". I repeated this for all phases.
2 - Uniquely named every task in my workbook, so I am using Name as my merge key.
3 - Attempted to use the merge function in the Import Wizard to update start_/finish_ fields in my mpp (btw - the dates in the Excel file are data type text)
The resulting update is incorrect as follows:
- two of the fields update correctly ( the dates for sub-tasks to Initiation and Post-Execution). None of the other dates are updated. In addition, the tasks that are not updated have their names appended to the (mpp) names field.
Is my process no supported?