Adding a Public Folder Calendar in Outlook for Web

  1. Sign in to Outlook on the web and navigate to your Calendar. 
  2. In the left-hand navigation pane, find Other calendars. 
  3. Click the three dots (...) or the More option.
  4. From the menu, select Add public folder.
  5. Click the arrow next to All Public Folders to expand it, then navigate through the folders (e.g., by department) to find the calendar you want to add.
  6. Click on the desired calendar and then click Add to Public Folder.