TMGR: How to Change Start Date for Team Plan

SUMMARY

No tasks in a Microsoft Team Manager plan can be scheduled before the start of the team file. If a task must start before the current schedule's start date, you must modify the schedule's start date. To do so, follow these steps:

1. On the Tools menu, click Options.
2. In the Options dialog box, click the Calculation tab.
3. Under Schedule Start Date, change the date to at least as early as the earliest task in your schedule.
4. Click OK.