Before exporting the firewall configuration into the golden template you must ensure the following prerequisites:
The source and target device model must be running on the same operating system for successful deployments:
Ensure that the source firewalls and target firewalls are in In Sync state in NSM. If not, then you need to synchronize the firewall before exporting, using the Action column.
It is recommended that you force synchronize the source firewalls which will be exported after upgrading or using a new NSM release. Otherwise, the bug fixes and improvements on the firewall management inside NSM will not be reflected.