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During a OneDrive backup, the following error may occur while downloading a OneNote file (.one): Failed to backup item: %path%, Download request retry timeout exceeded. This error will only be displayed when using one of the following versions of Veeam Backup for Microsoft 365: v7 P20231218 (build 7.0.0.4551) and earlier v7a (build 7.1.0.1301) v7a P20231218 (build 7.1.0.1401) The Solution section explains how, in later versions, this error was replaced with a warning.
This issue concerns the failure to back up a OneNote .one file on SharePoint. Initially, these problems were tied to changes made to the Microsoft 365 backend in late 2023. However, Microsoft resolved those issues by Q3 2024. Further occurrences of this problem are believed to stem from an excessive file version history for .one files, caused by OneNote files being stored in OneDrive rather than using the built-in OneNote notebook synchronization feature. When using OneNote with OneDrive, compatibility issues can arise if users attempt to store notebooks directly through the OneDrive file system instead of using the built-in notebook synchronization features. According to Microsoft's OneNote syncing best practices: In general, OneNote notebooks should always be synced and moved by the OneNote application, and not by file based synchronization systems such as a client application (such as the OneDrive or DropBox local client) or offline folders. OneNote has built-in sync logic with OneDrive allowing it to synchronize only the changes, which is significantly more efficient than file synchronization mechanisms like the OneDrive Desktop app or DropBox as it knows about the file format and can sync only the changes.
Veeam Backup for Microsoft 365 Starting with Veeam Backup for Microsoft 365 build v7 P20240123 (build 7.0.0.4901) and v7a P20240123 (build 7.1.0.1501), to prevent interruptions in backup operations due to the failure to backup up such OneNote files, these files will be automatically skipped with a corresponding warning. The warning can be suppressed using the information provided in the More Information section below.
Suppressing Warnings in Veeam Backup for Microsoft 365 (Optional) The job will perform retries for the affected OneNote items, and warnings will be logged in the job status. The following instructions may be implemented to suppress the warnings and disable the retries for items affected by the issue described in this KB.Note: This will disable retries for OneNote notebooks affected by this specific issue — other issues that require a retry will trigger a retry as expected. On the Veeam Backup for Microsoft 365 server and each proxy server, perform the following: Stop the Veeam Backup Proxy for Microsoft 365 Service service. Edit the Proxy.xml file located here: C:\ProgramData\Veeam\Backup365\Proxy.xml With the Proxy.xml file, add the following line under the <Archiver> section:
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