Before You Begin

Before you start adding a new Microsoft 365 organization with enabled multi-factor authentication (MFA) and disabled security defaults, you must register a new Azure AD application in your 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 Microsoft 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 your Microsoft 365 organization.
• Conditional Access policies are not blocking legacy authentication protocols for Veeam Backup account.