How to use the new domain alias after creating it in a separate workspace?

[Anonymous]

Hi,
I have created a new domain alias for a seperate workspace. I am not getting my Cname with my new domain as landing page url while creating the page
example:
I am having existing Cname as "go.xxx.com", I have created new domain alias as "go.yyy.com". But I can't access the go.yyy.com in the seperate workspace. What should i do after creating the new domain alias to use it in seperate workspace?

[Josh_Hill13]

Are you able to see the alias when you create a landing page and choose the different URL?

[Anonymous]

No.. I can't see the alias while creating a landing page. What should I do next? after creating the alias.
How I able to use that alias for creating a landing page to choose the url?