Considerations and Limitations

In this article

    This section lists considerations and known limitations in Veeam Backup for Microsoft 365 6.0.

    Note

    For the complete list of known issues and limitations in Veeam Backup for Microsoft 365 6.0, see Release Notes. For limitations in Veeam Backup for Microsoft 365 functionality when protecting organizations with modern app-only authentication, see this Veeam KB article.

    Infrastructure

    • Veeam Backup for Microsoft 365 does not support encryption at-rest for the following types of backup repositories:
    • A local directory on a backup proxy server.
    • Direct Attached Storage (DAS) connected to the backup proxy server.
    • Storage Area Network (SAN).
    • Network Attached Storage (SMB shares version 3.0 or later).
    • [For Microsoft Outlook] Update channels such as Beta Channel, Current Channel, or Monthly Enterprise Channel are not supported; Veeam Backup for Microsoft 365 supports only RTM/GA versions. For more information, see this Microsoft article.
    • If the Veeam Backup for Microsoft 365 console and a management server are deployed on different machines, make sure that the management server is trusted for delegation. For more information, see this Microsoft article.
    • If any of the machines with any of the Veeam Backup for Microsoft 365 components have been renamed (or its FQDN has been changed), or any machine has been added to a different domain, then all the components become unavailable to each other. If any of the listed has occurred on a server that acts as a backup proxy server, then such a server becomes Offline in the Veeam Backup for Microsoft 365 console. To make a server available, re-add it. For more information, see Adding Backup Proxy Servers.
    • IPv6 is not supported for Microsoft Azure China region.
    • Adding Microsoft 365 organizations using modern authentication with legacy protocols allowed is not supported for Microsoft Azure China region.
    • Adding Microsoft 365 organizations using modern app-only authentication is not supported for Microsoft Azure Germany region.
    • Microsoft Teams service is not supported for organizations in the Microsoft Azure China and Germany regions.
    • Notifications about backup jobs completion results may not work properly for Microsoft Azure China and Germany regions.
    • If you roll back the successful automatic update of the remote Veeam Backup for Microsoft 365 Console and PowerShell components, the Veeam Backup for Microsoft 365 server will not re-update these components.

    Backup Repositories

    • Backup repositories with enabled volume deduplication or compression are not supported.
    • A symbolic link that is configured as a mapped drive is not supported.

    Object Storage Repositories

    Backup

    • As part of Microsoft Teams data backup, Veeam Backup for Microsoft 365 backs up only the following types of channel tabs: Website, Planner, Word, Excel, PowerPoint, Visio, PDF, Document Library, OneNote, SharePoint, Stream, Forms, Power BI, Power Automate (ex Flow) and Azure DevOps.
    • When you perform backup of Microsoft Teams data, Veeam Backup for Microsoft 365 does not back up the following objects:
    • Private channels
    • One-on-one and group chats

    For more information about chats in Microsoft Teams, see this Microsoft article. You can use Veeam Explorer for Microsoft Exchange to explore data from user mailboxes and view chat messages as MSG files.

    • Audio and video calls
    • Video recordings
    • Contacts
    • Calendar: information about meetings and meeting chats
    • Code snippets in posts
    • Banner notifications in posts
    • Data of applications added as channel tabs (such as  Website, Planner, Word, Excel, PowerPoint, Visio, PDF, Document Library, OneNote, SharePoint, Stream, Forms, Power BI, Power Automate and Azure DevOps) and other 3rd party applications if their data does not reside in the SharePoint document library of the team
    • Veeam Backup for Microsoft 365 may not backup OneNote notebooks if their size is more than 2 GB. For more information, see this Microsoft article.
    • External SharePoint lists are not supported for backup. For more information, see this Microsoft article.

    Restore

    Note

    For more information about limitations that apply when you restore data from backups using Veeam Explorers, see the following sections of the Veeam Explorers User Guide:

    For more information about enabling In-Place Hold and Litigation Hold, see this Microsoft article.

    • Restore of OneNote notebooks from backups of Microsoft SharePoint, Microsoft OneDrive for Business and Microsoft Teams data for organizations with modern app-only authentication is not supported.
    • Restore of OneNote tabs from backups of Microsoft Teams data may fail with the "Configuration size exceeded. Provided: '4117' bytes MaxAllowed: '4096' bytes" error if the OneNote tab name includes non-Latin or special characters.
    • If a SharePoint site includes a hidden list, such list is not displayed in Veeam Explorer for Microsoft SharePoint after a site backup and thus, cannot be restored.

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