When using notification messages with managed installs, the inital message window may have an interaction window displaying the word "Finish" where one might expect "OK", as the installation has not begun.
To allow for maximum customization, this alert message has been designed in a way that permits multiple screen messages. Due to this feature, if additional messages exist, the interactive button will display "Continue" and if it is the final window (message) the interactive button will display "Finish".
As always, we encourage user feedback and suggestions. Please visit the SMA (KACE Systems Management Appliance) Uservoice to provide suggestions or feedback on this feature or other features of the SMA.