Public Folder Migration Guide From On-Premises Exchange 2007+ to Office 365 < 20GB Hybrid mode
Important: When you sign in to MigrationWiz, you are redirected to the Getting Started page in MSPComplete. To get to a migration project created before April 4, 2017, click the Go to Projects button on the Getting Started Page. To create a new project for the migration scenario documented in this article, click the waffle icon () in the top navigation bar of MSPComplete, and select the appropriate migration product.
Set users on Office 365 to access legacy on-premises Public Folders and if migrating the on-premises Public Folders to Office 365, configure the admin account to look at Office 365 folders by default while all other users look at on-premises Public Folders.
Once migration is complete, configure Office365 users to access Office365 Public Folders: