The JSup application UID is an unique id generated when the application was created.

It must never change and it's used to identify the application to store some data in the app-UID directory under the JSup data home directory:

• Alarm disabling/suppression configuration (the AlarmEnableSettings.jsup file).
• Most recent used windows in the Graphic editor (the mruWindows.jsup file).
• The user configuration for the Security system (the users.jsup file).
• Temporary files used by the JSup Web server.

It is also used to store the application property in the app-UID.Properties file under the JSup data home directory.