This articles explains what is migrated in Tasks by the Email Migration solution
M365 tenant-to-tenant migration
What is migrated?
- Default task folder
- Subfolders of the default Task folder
- Task Title
- Completed flag
- Reminders (Reminders will be migrated as greyed out, but can be edited by removing and recreating them)
- Repeat
- Categories
- Attachments
- Notes
- Favorite flag
What is not migrated?
- Task steps (API limitation).
- List Groups. (The subfolders will get migrated, but not under a Group).
Google to M365 migration
What is migrated?
- Default task List
- Other migration lists
- Task Title
- Description
- Due date
- Completed flag
What is not migrated?
- Subtasks