Microsoft Project: activity for weekends I have an automatically planned activity that has to take place the upcoming weekend. How can I configure an activity in that way? Thank you very much.

My suggestion is to use a **Task** calendar that restricts working time to weekends. Assign the task calendar to the "weekend only" task and select the option "Scheduling Ignores Resource Calendars". By that method you do not have to modify resource calendars nor create extra "spare" resources.