Why is my timesheet greyed out?

Question

Why is the timesheet greyed out (with hatching) instead of becoming light blue when registering hours?

Answer

This may be caused by an inaccurate Start or End Date in the Team Member's profile. If you are a Forecast Admin, go to Admin > Resources > People, and check the Team Member's Start and End Dates. Any dates past the End Date will be greyed out in Timesheets (even though you can still register hours for these dates).