Using Kantega SSO you can setup both single signon and background user synchronization. Single signon works on both mobile and desktop clients - users log in with their Okta username and password.
User synchronization gives you a clean architecture by keeping Atlassian user- and access management in your Okta cloud. Whenever a user is created, removed or changes roles, this is synchronized through the connector to your favorite Atlassian products. The cloud connector creates a virtual user directory that your Atlassian products see containing all your users and groups