With the new version of ExtendSync for Outlook Netsuite, the two-factor is now supported on mobile devices using the same Three-Step Authentication flow that is used in the desktop and online versions.
ExtendSync Outlook | Learn what to do if your role requires two-factor authentication and you want to use the Outlook mobile application
With the new version of ExtendSync for Outlook Netsuite, the two-factor is now supported on mobile devices using the same Three-Step Authentication flow that is used in the desktop and online versions.