The Firefighter User Exit has been implemented but the users are able to login to SAP system directly using FFID.
Please make sure that the Enhancement Project you created for the user exit is activated in CMOD and also the following objects are active in the system :-
Function Module EXIT_SAPLSUSF_001
Please make sure that the statement - 'include /virsa/zvirsa_userexit.' is in the first line of code within include ZXUSRU01.