Unfortunately, for performance reasons, we aren’t able to display all available activities on the volunteer’s Opportunity Calendar View. The volunteer’s opportunity calendar view displays the following:
Scheduled activities only (Seasonal and Unscheduled will not appear since they do not have specific dates).
Activities visible to volunteers based on status/qualifications (activities visible only to volunteers who are signed up/assigned/on the backup list will not appear).
Unfilled shifts (full shifts will not appear since the need is met).
Also note, the calendar shows the first 5 shifts of the day that match the filters the volunteer has applied. If there are more than 5 shifts available, a “See all shifts” link is available to open up a dialog box with all of the day’s shifts on it.