Migrate User Profiles
I want to migrate only the Profile Data
This came up for porting over birthday and other personal details from 2013 My profile details to SharePoint Online user profiles to appear in some custom web parts from App Store without manual reentry
Hetty Jacobs commented
I recommend the feature which allows users to export MySites data such as My Links, Newsfeed, Tasks and others. Ideally, it would be nice to export these data for every user in the User Profile Database with one button click.