Operational Defect Database

BugZero found this defect 125 days ago.

Veeam | kb4527

Exchange Backup Fails With: "There is an error in XML document"

Last update date:

1/8/2024

Affected products:

Veeam Backup for Microsoft 365

Affected releases:

7a

Fixed releases:

No fixed releases provided.

Description:

Challenge

Starting on December 11th, 2023, Exchange backup within Veeam Backup for Microsoft 365 fails with the following errors: There is an error in XML document and The specified type was not recognized: name='SharingMessage'

Cause

Veeam has observed that there have been changes to the structure of the XML message received from M365 referencing the SharingMessageType property received from EWS. The Veeam Backup for Microsoft 365 software is unable to process this XML structure. WSL definitions of EWS service can be found here: EWS XML elements in Exchange

Solution

The issue is fixed in latest Cumulative Patch for: Veeam Backup for Microsoft 365 7 - Cumulative Patch 7.0.0.4551 (P20231218) Veeam Backup for Microsoft 365 7a - Cumulative Patch 7.1.0.1401 (P20231218)

More Information

Veeam R&D Forums Thread: There is an error in XML document

Additional Resources / Links

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Status

Solved

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