I've consolidated my three websites into one Wordpress Multisite. Although I do have the domains mapped, the links that go out when posting still show as subdomain.maindomain.com.
How can I alter this so that they are not just mapped, but also so the vanity URL (the mapped URL) shows on all outposted material (i.e. Autopost's via Jetpack to Facebook and Twitter)?
I've ventured to Network Admin > Sites > [SUBDOMAIN] > Settings and I see the Siteurl and Home options. However I don't want to change those without first consulting as I know a how sensitive a basic Wordpress install is to those settings.
NOTE: Just so there's no confusion, each of my subdomains have been mapped appropriately. They each have their own URL name and entering the subdomain.maindomain.com will take you to vanityurl.com for each. My issue is when using Jetpack's Publicize plug-in to autopost to Facebook and Twitter. The link it posts still shows subdomain.maindomain.com.