When you install the VMware NSX plugin version 3.0.0
on a Panorama version earlier than 9.0.3, the installation is not blocked.
However, because Panorama 9.0.3 is the minimum version for the VMware
NSX plugin version 3.0.0, if you install the plugin on an earlier
version of Panorama, you must upgrade Panorama to version 9.0.3
or later to enable support for VMware NSX-T.