How to enable a Salesforce user as Live Chat Agent provided snap-ins are being used
*Assuming you are system admin and know about live chat configuration.
- On user record, make sure checkbox are checked: Service Console User & Live Agent User.
- Add user in queue which is associated with Live Chat button & Routing Configuration.
- Add user in presence configuration (Setup → Presence Configuration)
- On User profile (or any assigned permission set), add all available presence status in related list: Enabled Service Presence Status Access
Now all set! Ask user to login in salesforce, go to service console and make yourself available for chat!