To choose the version of the domain that's used, whether it be www or non-www navigate to Settings >> Advanced Settings and search for:  


Www Or Non-Www


System Variable: preferred_domain





This drop down allows to select www to include www in the domain of the site, or non-www to exclude www from the domain. After changing this setting, please refresh the HTAccess File to implement the change.


For additional questions or help setting this up, please submit a ticket to [email protected] or create a ticket HERE.