iOS Public Folders

As of September 2021 it's not possible to add Public folders to the Outlook app on an iPad. The only way to view a public folder on these devices is to use the web app version, to do so follow these steps on a Windows or Apple computer first and then access it through the Web Based App:

1. On a Windows or Apple computer open https://outlook.office.com/
2. Login (if asked) with your normal Office 365 username and password
3. In Outlook on the left towards the top you should see Folders, right click on it
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4. From the resulting menu select Add Public Folder to Favourites
5. Expand out to the public folder you want
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6. And click on it to select it
7. At the top of that window is a button saying Add Public Folder, click on it
8. After clicking on it you should see, just below the Add Public Folder text you clicked, a message saying 'The folder PublicFolderName was added in Calendar
9. To now view that calendar click on the Calendar icon on the far left
10. In the list of available calendars you now see, select to show, the calendar you have just added
11. Now on an iPad go to https://outlook.office.com
12. Log in with your Office 365 credentials as before
13. Then on the left (as you have just done above) click on the calendar icon
14. You should now see the public folder