Session Validity
Whenever the session times out, the app automatically uses oAuth refresh token to launch a new session from the server. This is more secure than logging in each time when the session expires. Logging in each time will send the actual username/password to the server over the network, making it more vulnerable than when passing tokens. Tokens can be invalidated by an administrator if found misused.
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In FSA for Windows, after session time out, you are redirected to the login screen. Changes made and saved using Quicksave or Save options before session timeout are saved locally and synced to the server during the next data sync.
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