The new identification method will come into force on the evening of December 5th, 2022, when the National Tax and Customs Administration (NAV) will be carrying out maintenance on the Online Invoice system.
From this day onward, to guarantee heightened security of electronic administration, secondary users can only access the Online Invoice system using two-step authentication.
When a secondary user logs into the Online Invoice system for the first time, upon entering the username and password, an “Enable two-step authentication” window will appear. This interface will guide the user through four steps enabling two-steps authentication.
Source: krgroup.eu