This section explores the difference between authenication methods

Modern application-only authentication


When protecting Office 365 organisations that use modern application-only authentication, consider the following limitations in backup and restore functionality:

Backup

    • Discovery Search and Public Folder mailboxes are not supported.
    • Dynamic Distribution groups are not supported.
    • The type property for shared and resource/equipment mailboxes cannot be resolved. Such mailboxes will be available for backup with a general ‘User’ type.
    • SharePoint Web Parts can only backed up if their ‘exportmode’ property is enabled. Non exportable Web Parts are not supported. 


Restore

    • OneNote restore is not supported.
    • SharePoint Web Part customized template cannot be preserved upon a restore. All Web Parts will be restored with the default template.
    • The ‘Allow multiple responses’ setting in survey lists within team modern sites is not preserved upon a restore.


If you would like to use this method and avoid paying extra for teams licences click this link.  https://cloudcover.virtualdcs.co.uk/SignUpModern


Modern authentication method with legacy protocols


When protecting Office 365 organisations that use modern authentication method with legacy protocols, consider the following limitations in backup and restore functionality:

    • Team backup required the VBO user to have a Team licence.