You can configure Microsoft Azure AD applications for Microsoft Office 365 organizations added using modern app-only authentication to minimize throttling when backing up Microsoft SharePoint Online and Microsoft OneDrive for Business data. You can add existing applications to the backup configuration or create new applications in your Microsoft Azure Active Directory using Veeam Backup for Microsoft Office 365 capabilities.
To minimize throttling, Veeam Backup for Microsoft Office 365 iterates through each added application and uses it to access Microsoft Office 365 resources and to fetch data from your organizations.
For security purposes, data exchange between applications in Azure and Veeam Backup for Microsoft Office 365 is maintained using SSL certificates only; you cannot use an Azure AD application secret.
For Microsoft Office 365 organizations added using either basic authentication or modern authentication with legacy protocols allowed, you use backup accounts instead. For more information, see Backup Accounts.
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