FortiClient EMS 7.4.7 - creating installers with invitation

Hello,

We have deployed EMS 7.4.7 and we need to deploy client to about 300 endpoints via Intune. But Im missing option to choose the Invitation code during installer creation. In creation is only option to “override invitation code during upgrade”. And under Invitation page when I create an invitation code it is not possible to link it to existing Forticlient installer. 

Is there a way how to do it? 

Main thing we are fighthing right now is that after installation of Client to endpoints, it is not automatically registered to EMS. I have found out this topic, where its said that we shouldnt using “enforce user verification” so I have disabled it. But still im confused about invitation codes.

Thanks for help!