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Public Folders

Public folders can also be added to Virto Calendar App as a data source. If you’re using public folders (created in the Exchange admin center), you can overlay them with your Virto calendar.

Public folder calendar overlaid on a Virto calendar as an Exchange data source

First, click the calendar name.

Clicking the calendar name to open the Virto Calendar App settings for adding public folders

In Edit calendar, scroll down to “Exchange settings” and check the box “Display events from Public Folders Calendar(s).”

Display events from Public Folders Calendars checkbox in the Exchange settings of Edit calendar

Next, save and open the calendar, and the added public folders will appear.

Public folder events appearing in the Virto calendar view after saving the settings

Create, edit and delete public folder events

Whether you can change the events of a public folder calendar in Virto Calendar App depends on your permissions on the public folder itself, not on the calendar settings above. Public folder permissions are assigned by your Exchange administrator in the Exchange admin center; the permission levels are described in Public folder permissions on Microsoft Learn.

  • With edit rights on the public folder (for example, the Editor, Publishing Editor or Owner permission level), you can create, edit and delete its events right in the Virto calendar.
  • Without edit rights (for example, the Reviewer level), the public folder calendar is display only: its events appear in the overlay, but you cannot add, change or delete them.

To create an event, select a time period or click a day and choose the public folder calendar as the calendar for the event. To change or delete an existing event, click it and use Edit or Delete in the tooltip. The event is stored in the public folder itself, so everyone who uses that folder in Outlook sees the change as well.

If the calendar is display only for you but you need to edit its events, ask your Exchange administrator to raise your permission level on the public folder.

Updated on October 12, 2026