FortiManager supports network operations use cases for centralized management, best practices compliance, and workflow automation to provide better protection against breaches.
Article Id 309893

This article describes the scenario of license duplication in FortiManager/FortiAnalyzer-VM.


FortiManager, FortiAnalyzer.

  1. The FortiManager/FortiAnalyzer-VM license can be reused in a separate VM instance. Generally, the license is reused for VM migration purposes. To know how to reuse the FortiManager/FortiAnalyzer license, refer to the below KB article: Technical Tip: How to reuse FortiManager/FortiAnalyzer VM license
  2. Once a license file has been uploaded into a FortiManager/FortiAnalyzer-VM instance, FortiManager/FortiAnalyzer will send its license file serial number and VM instance UUID to the public FortiGuard server.
  3. If FortiGuard receives another request from a different VM instance UUID with the same license file serial number, a license duplication error will be acknowledged by FortiGuard, triggering a license duplication notification on the FortiManager/FortiAnalyzer-VM.
  4. Once the license duplication notification appears in the FortiManager/FortiAnalyzer-VM, a grace period of 24 hours will be granted to rectify the license duplication error.



  1. The following CLI output will show the VM license details:


diag debug vminfo

VM license is valid.                <----- The VM license will be shown as valid within the grace period.

fds_code: 401                       <----- The code '401' indicates a duplicate license.

Type: Full

Licensed GB/Day: 1

Max devices: 10000

Management IP:

Serial Number: FAZ-VM12345678

VM UUID: 798228f1-161f-4c34-8098-c3febc5dfb7b


diag debug vminfo

VM license is invalid because license is duplicated.  <----- The VM license will be shown as invalid once the grace period expired.

fds_code: 401


  1. To avoid license duplication, ensure only one VM instance is running and power down/decommission all other running VM instances that are also using the same license file Serial Number.