TMGR: Unique Task ID Is Reused in Some Cases

SYMPTOMS

When a task in Microsoft Team Manager is archived, the task is removed from the Team Manager Organizer View. If you then paste the task back into the file, the task will have the same Unique ID as the archived task. The same behavior can be achieved if you copy a task, delete the same task, and then paste the task into the same line. The unique task ID number is retained.

This is an exception to the rule that a new, unique ID is created for each new task. For example, if you copy a task and paste it into another task line, it gets a new, unique ID.