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A backup job in Veeam Backup for Microsoft 365 processing Exchange data fails with the error: Failed to get folder properties. Not allowed to access Non IPM folder
During Exchange backup, Veeam Backup for Microsoft 365 requests the properties of all mailbox folders, including the properties of hidden and legacy folders (e.g., ‘TeamsMessagesData’). Due to a recent change in Microsoft 365, the properties of the ‘TeamsMessagesData’ folder cannot be retrieved using the EWS API, which is used by Veeam Backup for Microsoft 365 to process Exchange data backup.
The issue was fixed in the following version:
Workaround This workaround is provided for customers who are not ready to upgrade to the latest version of Veeam Backup for Microsoft 365 and are using at least build 6.1.0.1015. If a build of Veeam Backup for Microsoft 365 older than 6.1.0.1015 is presently installed, we suggest upgrading to the latest version of Veeam Backup for Microsoft 365, which will resolve the issue and ensure that a supported version is in use. There are two options to implement this workaround; choose only one:
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