What happens when FortiGate is removed from FortiManager/FortiAnalyzer?

[McElhinney18]

I am working a project which will see the customer inherit an existing FortiGate deployment. These firewalls reside in branch locations and are centrally managed using FortiManager in the data centres. They are also logging to FortiAnalyzer in the same location. 

My question is if the FortiGates are removed from FortiManager, will this impact the baseline configuration? My hope is that when removed from FortiManager, these devices can be locally managed with the configuration in tact. 

[Toshi_Esumi]

Yes, of course. I don't know anything about FAZ since we don't have it, but for FMG, when you remove a FGT properly, it would change the FGT's central-management config and the FGT would continue to work as a standalone device.

Toshi