Renaming Virtual Server to

If i was intending to make a change to my existing whmcs installation from to or perhaps using “virtualmin>Server configuration>change domain name” are there any special considerations i need to keep in mind? (I see there is a “move virtual server” option as well?)

Installed is

whmcs (obviously)

Letsencrypt SSL certificate (will change to parent domain (will change to parent domains

I am also using sendgrid mail relayhost (not sure if this is relevant or not)