Troubleshooting Tip: Firmware Template Warning Message 'Please note this is not a recommended upgrade path'

[rmankotia]

Description	This article discusses a warning message, 'Please note this is not a recommended upgrade path', observed when upgrading firmware from FortiManager using a firmware template, even upgrade path is normal.
Scope	FortiManager.
Solution	When trying to upgrade FortiGate using a firmware template in FortiManager, in the upgrade path preview, a warning message appears saying 'Please note that this is not a recommended upgrade path', even though the upgrade path is normal.   Check on FortiManager CLI, no errors observed, and CLI shows correct upgrade path without any warning: FMG # diagnose fwmanager show-dev-upgrade-path <devname> device name. Available: FG200E-1 (id:770, version:7.0.15-632) FortiGate-B (id:201, version:7.0.17-287)(offline) FortiGate-6-2 (id:253, version:7.2.11-1740) FMG # diagnose fwmanager show-dev-upgrade-path FG200E-1 7.2.11 FG200E-1(770): ->7.2.10-b1706-M ->7.2.11-b1740-M Upgrade path tool confirmed the path: https://docs.fortinet.com/upgrade-tool Note: This issue is identified under the Known Issue ID 1117810, and the issue is planned to be resolved in v7.4.8 and v7.6.4.