You can access the link to Administration Portal via Live Assist Settings app.
1. Click to view the Unified Interface Apps:
2. Select the Live Assist Settings App:
3. From the left menu, select the Administration Portal link
Note: The Supervisor Console link is for the Engagement Portal page.
4. Click the blue button to log in with your Microsoft Dynamics 365 credentials.
5. If you were logged in to Dynamics, you're done! If not, you will be redirected to a page where you can enter your Dynamics credentials. (You may also need to grant Live Assist permission to access your profile data.)
6. When you log into the Live Assist Admin Portal you will see an admin dashboard similar to the one shown below: