I originally setup the website using a particular domain (ex. originaldomain.com) but now that we are ready to go live, I need to use a different domain name (ex. newdomain.com) for the website and remove altogether any reference to the original website.
I have newdomain.com's nameservers pointed to the website files on the host so it is pulling up but all of the menu links, URL's etc are still pointed to the originaldomain.com.
In the general settings, there is an option for WordPress Address (URL) and Site Address (URL). I'm assuming I need to change the "Site Address" to newdomain.com but I made the mistake on a previous website of changing BOTH of these settings and the entire website was broken, even the login and I found online that I had to manually go into MyPHP Admin to point the database back to the original URL to gain access to the admin again.
I don't want to "break" the site and cause it to go down now that we are live.
Any help would be greatly appreciated.