I am currently using a tool to migrate the on-premises content to SharePoint Online which is having ADFS and Dir Sync.
I saw a difference in the migrated and non migrated Office 365 AD accounts which is as explained below:
non-migrated users accounts will be
domain\fistname_lastnameand corresponding claims user will
"i:firstname.lastname@example.org" but for migrated office 365 accounts will be
I would like to start moving the content before migrating the users and interested to know whether the SharePoint permissions will work normally even post migration of user accounts or not. I am even worried about the user specific fields such as modified by and created by.
Please share your thoughts.