Thanks! That seems to have fixed the issue.
[root@web15 ~]# ls -ld /home/httpd/htdocs
lrwxrwxrwx 1 root root 16 Nov 30 17:47 /home/httpd/htdocs -> /sandbox/htdocs/
[root@web15 ~]# ls -ld...
Trying to set up virtual host Document Root directory in Configuration -> Virtual Hosts -> [name of our virtual host] -> General -> Document...
Separate names with a comma.