Why can’t a volunteer see a specific Activity in the Calendar View?

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: 

1. Scheduled activities only (Seasonal and Unscheduled will not appear since they do not have specific dates). 

2. 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). 

3. 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.