Everyone needs a little time off, but letting Project 2007 know this can be a little tricky. Project managers schedule vacation days for people on their teams by modifying resource calendars (resource calendar: A calendar that specifies working and nonworking time for an individual resource. A resource calendar differs from a base calendar, which specifies working and nonworking time for more than one resource.).
When Project 2007 schedules the project, it uses a resource calendar to schedule the tasks that do not have a fixed duration and that have resources assigned. For example, if a resource has a week of vacation specified on his or her resource calendar, Project will not schedule the task for that week.
In this demo, I create a simple vacation day for a resource named Sarah.
For more information on workflows, see Overview: Using calendars in Project.