One of my user already has selected a domain when joining our Dooo account (i.e., profX.su.domains). He is aware that he can have many sub-domains based on the profX.su.domains. However, he would like to have a second sub-domain under su.domains.
I thought I can do this by login to WHM as root, locate the user from the List Accounts, and Click on cPanel, Go to Add-On Domain to add the XXX.su.domains for the user. However, i got the message
“su.domains” is already owned by another user.
There must be a different way to do this and I went to a wrong path.