We have heard of reports that Outlook 2013 with an Outlook 365 account apparently does not save the flag on an email correctly, and so 2Do cannot pick those up. If you were to flag them using https://portal.office.com, it seems to work perfectly instead, as the flag is being saved correctly.
Article ID: 712
Created On: Thu, Dec 3, 2015 at 9:15 AM
Last Updated On: Fri, Dec 4, 2015 at 12:28 AM
Online URL: https://www.2doapp.com/kb/article/i-use-outlook-2013-to-flag-my-emails-but-they-re-not-being-captured.html