1.Log into the Plesk Control Panel for your domain
2.Click on the Websites & Domains tab at the top
3.Click on Add New Domain
4.fill in the information for your domain
5.Click add new subdomain.
6.Type the prefix for this subdomain.
7.Choose the domain under which this subdomain will be created.
8.Set the document root and click ok.
9.Click the subdomain to edit it.
10.Here we are able to change the subdomain name and document root.
11.Click ok.
