---
title: "VmWwnConflictEvent"
description: "This event records a conflict of virtual machine WWNs (World Wide Name). The WWN of the VM conflicts with the currently registered WWN. Change the WWN of conflicting VMs. Refer to this VMware KB article for more information."
canonical: "https://helpcenter.veeam.com/docs/mp/kb/vmwwnconflictevent.html"
breadcrumb: "Veeam MP for VMware Online Knowledge Base > Event-Based Rules > Virtual Machine Error > VmWwnConflictEvent"
dateModified: "2026-09-10"
---

# VmWwnConflictEvent

## Summary

This event records a conflict of virtual machine WWNs (World Wide Name).

## Causes

The WWN of the VM conflicts with the currently registered WWN.

## Resolutions

Change the WWN of conflicting VMs. Refer to this [VMware KB article](https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/7-0/vsphere-storage-7-0/configuring-fibre-channel-storage/using-fibre-channel-npiv-with-vsphere-virtual-machines/configure-or-modify-wwn-assignments.html) for more information.

## External

Refer to the [VMware Online Documentation](https://techdocs.broadcom.com/) for more information.