Adding Organizations with Modern App-Only Authentication

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    When you add an organization using the modern app-only authentication method, you are required to provide Azure AD application settings. Veeam Backup for Microsoft Office 365 uses such an application to establish a connection to your Office 365 organizations with enabled security defaults and maintain data transfer during backup and restore sessions.

    With modern app-only authentication, you cannot use Veeam Backup account; only communications through an Azure AD application is possible.


    For limitations in Veeam Backup for Microsoft Office 365 functionality when protecting organizations with modern app-only authentication, see this Veeam KB article.

    To add a new Microsoft Office 365 organization, do the following:

    1. Launch the Add Organization wizard.
    2. Select an organization deployment type.
    3. Specify connection settings.
    4. Choose an Azure AD application.
    5. Register an Azure AD application.
    6. Log in to Office 365.
    7. Finish the wizard.