Solution : https://service.sap.com/sap/support/notes/1609074 (SAP Service marketplace login required)
Key words : 
parameter 'send firefighter login notification immediately', 'send firefighter login notification immediately' -, 'send firefighter id logon notification' -, firefighter id logon information immediately, firefighter login notification emails, terms emergency access management, report program /virsa/zvfat_log_notification, logon notification email, report program reads, firefighter logon session
Related Notes : 
       
| 1602303 | Login notification email template is incomplete | 
| 1558954 | AC 5.3 SP14 Firefighter EMail Notification issues. | 
| 1548036 | Definition of options in controller's table | 
| 1494107 | FAQ : Log report email scheduling | 
| 1072558 | Superuser Privilege Management - Initial Set up Steps | 
| 1058612 | FF-'.TXT' extension missing while sending Email Notification |