This is an archive version of the document. To get the most up-to-date information, see the current version.

Before You Begin

Before you start adding a new Microsoft Office 365 organization with enabled multi-factor authentication (MFA), you must register a new Azure AD application in your Microsoft Azure Active Directory.

You will be required to provide connection settings to this application at the Specify Azure AD Application Credentials step. Such an application is used for establishing and maintaining a connection to your Office 365 organizations and to perform a backup and restore from/to such organizations.

Make sure to grant your Azure AD application required permissions.

Check the following:

Security defaults are disabled in Microsoft Office 365 organization.
Conditional Access policies are not blocking legacy authentication protocols for Veeam Backup account.