Alternate access mapping in SharePoint Online

Question

Is it possible to configure alternate access mapping in SharePoint Online? If so please share the steps to do so?

Answer 1

This is not possible in SharePoint online because your tenant is created with a specific name and all the sites will be based on that name.

Your solution would be to create a new tenant and then raise a support ticket to migrate the licenses.

Reference - Feature availabilty across SharePoint plans

User voice - Add AAM (alternate access mapping) to Sharepoint Online

Answer 2

Alternate access mapping is not available in SharePoint Online. (Source)

URL of a public website hosted via SharePoint could be changed, but the URL of your private(=internal) site collection can't be changed.