By default, all Symphony sessions either on the Symphony Desktop Application (SDA) or mobile application call the /login/refresh_token API once a day via datafeed.
This means that, as long as the user remains active in any one of the Symphony clients (SDA or mobile), their session will continue to be authorized and they will not be logged out.
The only way for a user to be logged out due to an expired session is when there is no activity whatsoever in any Symphony client for 14 days. In this case, the user will automatically be logged out and they will need to sign in again to access Symphony.
Note: If any cookies are deleted or the cache is cleared, the session will be classed as expired and the user will be logged out.