Malware and Ransomware Detection in M365

Availability Requirement Threat Detection is available to Veeam Data Cloud for Microsoft 365 customers with Premium or Advanced plans. Customers must opt in to AI settings to enable this feature. Contact your Veeam account team or see your plan details to confirm availability. Supported Workloads...

Potential Issue With Backing up Sharepoint, Onedrive, Teams Files, and List Attachments

Challenge Backup of SharePoint, OneDrive, and Teams data completes successfully, and subsequent restores of this protected data are successful. However, when opening some of the restored files or list attachments, users may find that these items do not open correctly in their associated...

Guest processing fails for Nutanix AHV, Proxmox VE, Scale Computing HyperCore

Challenge When running backup or replication jobs for Windows virtual machines hosted on Nutanix AHV, Proxmox VE, or Scale Computing HyperCore with Veeam Backup & Replication 13.0.1 Patch 2, guest processing fails with one of the following errors: Failed to install guest processing components for...

External Client App (ECA) for Veeam Data Cloud — Adapting to New Salesforce Security Requirements

Support Statement Summary of Changes to Salesforce Security Protocols Salesforce has introduced new security protocols for third-party applications accessing Salesforce organizations. This change affects all third-party products that integrate with Salesforce, requiring those vendors to transitio...

Support Statement — Exchange Web Services (EWS) Deprecation

Challenge Microsoft has announced the deprecation of Exchange Web Services EWS in Exchange Online, with the initial phase-out target of October 1, 2026. Veeam Backup for Microsoft 365 and Veeam Data Cloud for Microsoft 365 currently leverage EWS for Exchange Online backup functionality. Note: Thi...

How to Safely Perform Snapshot Rollback of Veeam Backup for Microsoft 365

Purpose This article provides step-by-step guidance for performing a snapshot rollback of a Veeam Backup for Microsoft 365 deployment in the event of a disaster. Critical Warning Rolling back to a snapshot is a complex and highly risky process that should only be performed in rare disaster...

New Search Experience for Veeam Data Cloud for Microsoft 365

Purpose We are excited to announce the initial rollout of our new search feature, designed to significantly improve the speed and efficiency of your search experience. Below are the details and important limitations to be aware of during this phased rollout. What's New Faster Search Experience Ou...

Veeam Agent for Linux: Update Blocked by Repository Signing Key Change

Article Applicability This article is intended for customers managing Veeam Agent for Linux 6.3 deployments. Deployments that have already been updated to Veeam Agent for Linux 13, or are being updated to it, are not affected by the repository GPG key change. Challenge When attempting to update...

How to Manually Update GPG key on Veeam Appliances

Article Applicability This article is specifically regarding the Veeam Appliances used in conjunction with Veeam Backup & Replication 13. Including the Veeam Software Appliance, Veeam Infrastructure Appliance, and Veeam Hardened Repository deployed from the Veeam Infrastructure Appliance. For...

How to Manually Update GPG key on Veeam Hardened Repository Appliance

Article Applicability This article is specifically regarding the Veeam Hardened Repository ISO v2 appliance, which was distributed alongside Veeam Backup & Replication 12. For information about manually updating the GPG key on the appliances associated with Veeam Backup & Replication 13, review...

Vulnerabilities Resolved in Veeam Backup & Replication 13.0.1.2067

All vulnerabilities documented in this article were resolved in Veeam Backup & Replication 13.0.1.2067. Veeam Software Security Commitment Veeam® is committed to ensuring its products protect customers from potential risks. As part of that commitment, we operate a Vulnerability Disclosure Program...

Vulnerabilities Resolved in Veeam Backup & Replication 12.3.2.4465

All vulnerabilities documented in this article were resolved in Veeam Backup & Replication 12.3.2.4465. Veeam Software Security Commitment Veeam® is committed to ensuring its products protect customers from potential risks. As part of that commitment, we operate a Vulnerability Disclosure Program...

Build Numbers and Versions of Veeam Plug-In for HPE Morpheus VM Essentials

This KB article lists all versions of the Veeam Plug-in for HPE Morpheus VM Essentials and their respective worker build numbers. Version | Plug-In / Worker Build | Release Date ---|---|--- Veeam Plug-in for HPE Morpheus VM Essentials 2 Releases Veeam Plug-in for HPE Morpheus VM Essentials 2.0...

Unable to Generate Reports Due to Error “Veeam ONE Caching Service Maintenance”

Challenge When attempting to generate reports in Veeam ONE the report fails to load and instead for following error is displayed: Veeam ONE Caching Service Maintenance The caching service database is being prepared for the maintenance window. Often, when this error is shown, the following error...

"Specified user does not have permissions to add backup server"

Challenge When attempting to add a Veeam Backup & Replication server to Veeam ONE, the following error occurs: Specified user does not have permissions to add backup server Cause This error occurs when the account used by Veeam ONE to connect to the Veeam Backup & Replication server either does n...

"4BDN: Connected Salesforce Org already exists"

Issue Resolved in New Version The issue documented in this article was resolved in Veeam Backup for Salesforce 3.2. Challenge When attempting to add a Salesforce sandbox to an on-premise installation of Veeam Backup for Salesforce , the following error occurs: 4BDN: Connected Salesforce Org...

List of Security Fixes and Improvements in Veeam Kasten for Kubernetes

Purpose This article describes all security-related fixes and improvements introduced in each release or update of Veeam Kasten for Kubernetes. This article aims to provide our customers' security and compliance teams with detailed information on security improvements. Full product release notes...

Veeam Agent for Microsoft Windows Service Fails to Start After Upgrading .NET Components

Challenge After upgrading .NET components on a machine where Veeam Agent for Microsoft Windows is installed, the "Veeam Agent for Microsoft Windows" service fails to start. Windows could not start the Veeam Agent for Microsoft Windows service on Local Computer. Error 1053: The service did not...

Support Statement — Microsoft 365 Changes to Throttling Enforcement

Support Statement This article documents upcoming changes Microsoft is making to application throttling enforcement in Microsoft 365 environments and its potential impact on customers using Veeam Backup for Microsoft 365 and Veeam Data Cloud for Microsoft 365. What's changing? Microsoft has...

Veeam Operations Fail When the Backup Server Has Limited Internet Access

Article Applicability This article addresses an issue that may occur when using a Windows-based deployment of Veeam Backup & Replication v13, where the Veeam Backup Server or other Windows-based component servers are isolated from the internet or subject to significant firewall restrictions...

Veeam ONE Upgrade Fails with "Win32 exception occurred while executing SQL script."

Challenge When upgrading Veeam ONE from version 12.3 to version 13, the following error occurs: Win32 exception occurred while executing SQL script. Error code: 0x80004004. Error details: The SELECT permission was denied on the object 'sysjobs', database 'msdb', schema 'dbo'. Cause This error...

PostgreSQL Connection and Authorization Information

Article Applicability This article provides general information regarding PostgreSQL configuration and connectivity. The details are based on and tested exclusively with Windows-based PostgreSQL instances installed by Veeam products such as Veeam Backup & Replication, Veeam ONE, and Veeam Backup...

Veeam Backup & Replication Platform Migration Guide (Windows to Linux)

Article Applicability This article is related to a new capability to migrate the configuration of a Windows-based Veeam Backup & Replication deployment to a Veeam Software Appliance. Due to the variability in how Veeam Backup & Replication can be used, configured, and deployed, and the complexity...

Hardened Repository error: "veeam-grp-backup group has no rights on the backup folder"

Challenge When editing the properties of a Hardened Repository that has been upgraded to Veeam Hardened Repository version 13 for Veeam Backup & Replication 13 using the Veeam Infrastructure Appliance ISO, and was originally created using the Veeam Hardened Repository ISO version 2.0 for Veeam...

How to Change Where Logs are Stored on the Veeam Appliances

Changing Log Location Will Break Automated Log Collection The automated log collection tools built into both the Veeam Backup & Replication Web UI of the Veeam Software Appliance and the "Create support bundle" function within the Host Management Console collect logs only from the default log...

Most Common Issues with Salesforce Connected App in Veeam Data Cloud for Salesforce

Purpose This article documents the changes to Connected App usage in Veeam Data Cloud for Salesforce resulting from Salesforce's restriction of uninstalled connected apps, effective Autumn 2025. It provides guidance on authorization requirements, common connection errors, and necessary permission...

Failed to perform post-processing for plug-in. Error: The issuer certificate does not have a Basic Constraints extension.

Challenge After upgrading a Windows-based Veeam Backup & Replication deployment to version 13.0.1 or higher, the following error may occur: Failed to perform post-processing for plug-in $pluginName Linux $machine Error: The issuer certificate does not have a Basic Constraints extension. Examples:...

Restore to AWS EC2 Fails with: "ClientError: Unknown OS / Missing OS files" or "FirstBootFailure"

Challenge When restoring a VM to AWS EC2, one of the following errors occurs: StatusMessage: "CLIENTERROR : ClientError: Unknown OS / Missing OS files." Failed to import machine to Amazon EC2: CLIENTERROR : FirstBootFailure: This import request failed because the instance failed to boot and...

Restore to Google Compute Engine Fails with API Errors When Using Helper Appliance

Resolved in Veeam Backup & Replication 13.1.0.411 The issue discussed in this article was resolved starting in Veeam Backup & Replication 13.1 build 13.1.0.411. The article remains active to help customers who have not updated their Veeam Backup & Replication deployment and remain on the previous...

How to Manually Change the VSA Host Management Certificate

Purpose This article documents the procedure for updating the Host Management Certificate used by the VSA Veeam Software Appliance. Note: The ability to update the certificate via the VSA Host Management Console may be added in a future version; however, as of version 13.0, it must be completed b...

Failed to create a restore point: PostgreSQL database operation failed multiple times with transient error.

Challenge After upgrading to Veeam Backup for Microsoft 365 8.2 or 8.3, jobs fail with the erorr: Failed to create a restore point: PostgreSQL database operation failed multiple times with transient error. Cause This issue occurs because various one-time PostgreSQL queries that the software...

Content-MD5 HTTP header is required for Put Object requests with Object Lock parameters

Challenge Jobs targeting an S3-Compatible repository fail with either of the following errors: Error: S3 error: Content-MD5 HTTP header is required for Put Object requests with Object Lock parameters Code: InvalidRequest Agent failed to process method S3 error: Checksum Type mismatch occurred,...

Veeam Agent for Microsoft Windows 13.0.1.120 to 13.0.1.1009 Upgrade Notes

Article Applicability This article documents notable deviations from the standard Veeam Agent for Microsoft Windows upgrade procedure that occur only when upgrading from Veeam Backup & Replication VBR 13.0.1 build 13.0.1.180 to 13.0.1 Patch 1 build 13.0.1.1071. This patch to VBR includes a new...

Vulnerabilities Resolved in Veeam Backup & Replication 13.0.1.1071

All vulnerabilities documented in this article were resolved in Veeam Backup & Replication 13.0.1.1071. Veeam Product Latest Version Download Page Veeam Software Security Commitment Veeam® is committed to ensuring its products protect customers from potential risks. As part of that commitment, we...

Kasten Prometheus Export via remote_write

Purpose Kasten now supports exporting metrics from the embedded Prometheus to external backends using Prometheus's remotewrite capability. This feature supports the collection, aggregation, and visualization of cluster and multi-cluster metrics in monitoring tools like Grafana Cloud and Datadog...

Release Information for Veeam Backup for Microsoft 365 8.3

More Recent Version Available Please find the latest version of Veeam Backup for Microsoft 365 here: Veeam Downloads - Latest Version Build Numbers and Versions of Veeam Backup for Microsoft 365 Requirements This release can be used to: upgrade an existing v7, v8, v8.1, or v8.2 deployment of Veea...

OneDrive / SharePoint Backup Fails with "Error: Invalid MIME content-length header encountered on read."

Challenge A backup job for OneDrive or SharePoint items processed by Veeam Backup for Microsoft 365 fails when attempting to download certain item versions, displaying the following error: Invalid MIME content-length header encountered on read Cause The issue is related to the download process us...

How-to Restore Lost Access to Cache Database After Using Custom SSL Certificate

Article Applicability This article is relevant only if the Veeam ONE deployment uses a custom SSL certificate, and not the one generated by the Veeam ONE installer. The error shown in the challenge section can also occur if the Veeam ONE Caching Service cannot access the PostgreSQL instance that...

How to Configure HTTP Proxy for Linux-based Veeam Components

Purpose This article documents how to configure HTTP and HTTPS Proxy settings for Linux-based components, including the Veeam Software Appliance and JeOS-deployed Veeam Infrastructure Appliances, in environments that require a proxy to access the internet. Note: For proxy configuration settings f...

SureBackup Job Displays Error "PowerShell is not installed on this computer."

Challenge A Veeam Backup & Replication 12.x SureBackup job, utilizing a PowerShell script as part of testing, fails with the error: SureBackup JobName ScriptTests End 'Custom script 1: name $scriptName, failed - PowerShell is not installed on this computer ' Cause This issue occurs for machines...

How To Enable DDBoost Immutability with Governance Mode

Purpose This article provides additional information for enabling immutability for the Dell Data Domain deduplicating storage appliance when using governance mode, as referenced in the Veeam Backup & Replication User Guide here: Veeam Backup & Replication User Guide Backup Infrastructure Componen...

Release Information for Dell SC Series Plug-In for Veeam Backup & Replication

This plug-in leverages the Veeam Universal Storage API, which enables storage OEMs to allow Veeam Backup & Replication integration to the arrays for backup and replication jobs. Requirements Before installing Dell SC Series Plug-In v1.0.211, ensure that you are running Veeam Backup & Replication...

How to Exclude Machines from Proactive Malware Scanning

Article Applicability This article is relevant only to Veeam Backup & Replication 13.0.x builds. Starting with Veeam Backup & Replication 13.1 the Proactive investigation feature can now be enabled or disabled for individual protected machines using the Veeam Backup & Replication Web UI. Purpose...

Backup Job to Cloud Provider Fails to Stop Running Health Check Session

Known Issues - Will be resolved in future release. This issue Issue ID: 1151633 has been identified and reviewed by Veeam's R&D team and will be fixed in a future release. This article serves to document the issue and provide information about workarounds. Challenge Observed Behavior If the Healt...

Hypervisor Restore Options are Greyed Out in Context Menu

Challenge When attempting to restore an entire VM, some hypervisor options are greyed out in the right-click context menu. Solution This issue is currently under investigation and is scheduled to be addressed in a future patch. For now, there are two workarounds available: Select the machine to b...

The HTTP request was forbidden with client authentication scheme

July 2, 2026 -- Issue Recurrence Resolved July 2, 2026 | Veeam Customer Technical Support began observing an increase in cases reporting that jobs were failing with the same error documented in this article. July 3, 2026 | Microsoft engineering has implemented backend changes as part of the ongoi...

SharePoint or OneDrive Backup fails with 'Cannot complete this action'

This article has been updated to document the July 20, 2026, occurrence of this issue. Information regarding the February 2026 occurrence can be found in the More Information section at the very bottom of this article. Challenge A backup attempt for SharePoint Online and OneDrive objects may fail...

Veeam Backup & Replication 13.0.1 In-Place Upgrade Version Requirement

Challenge When attempting to upgrade an existing Veeam Backup & Replication deployment to version 13, the installer displays a message stating: Unable to upgrade Veeam Backup & Replication: you can upgrade from version 12.3.1.1139 or later only. Solution Before attempting an in-place upgrade to...

Release Information for Veeam ONE 13.0.1 RTM Patch 0

Update Applicability This "Patch 0" update for Veeam ONE 13.0.1 is strictly intended for deployments using the RTM release build 13.0.1.5860. If Veeam ONE 13.0.1 GA build 13.0.1.5924 is installed, this update can be ignored as it is not needed. All resolved issues listed in this article were foun...

Impact of Domain name or Hostname Change on Veeam Appliances

Challenge After changing the FQDN of a Veeam Appliance--either by adding it to a domain or changing its hostname--some operations may be impacted. Solution SAML Authentication May Stop Working After the host name of the Veeam Software Appliance is changed, the Service Provider SP information will...