Force logoff users who were logged in via Fiori launchpad

Question

We know that Fiori launchpad in frontend communicates with background by a stateless technology. But now there is a demand that all users have to be logged off forcefully, no matter whether these users were logged in by SAP GUI or Fiori launchpad. When a report program is running in SAP GUI, all users have to be logged off.

Now what I know are:

• Function module TH_DELETE_USER is useful for users who logged in by SAP GUI.
• Those users who were logged in by Fiori launchpad can't logoff by this FM or SM04 without any error message.
• Launchpad users can't be logged out by deleting security sessions in SM05.

Could anyone tell me whether there are methods which could invalidate launchpad user authentications? ABAP methods are best, but other technologies are welcome too.