If you already created a client and an experience, you can now create and share specific links with that client (and their groups). When a new session starts, custom settings and branding will appear for them. In addition, you will be able to digest each client individually in the Analytics tab.
Create a client link
Within an experience, click 'Share', and publish the experience if you haven't done so already.
Click 'Create new link'
Select the client that you'd like a new link
Copy the link with the black copy button and share with your client
Note: Once you create a link, you can also delete a link. You may do this if you do not want the client to access the experience any more or if you need to create and recycle a new one. At this time, you cannot create more than one link per client.