Log out event

Can I place an event on the logout button of Mendix? The case: Users need to validate some data in the application before a certain date. If they do not validate the data they won't get any money. I know users can log out by closing the browser, but if a user logs out using the logout button we want to show the user a message that they still need to validate the data before they get the money. Thanks in advance.
1 answers

See https://forum.mendix.com/questions/1997/On-browser-close-event

(Or, in short: No. )