Need to Restore PST Files to Office 365 Mailboxes - What's the Best Approach

Hey everyone,

I have a task coming up where I need to restore several PST files back into Office 365 mailboxes. Haven't done this before at this scale and honestly not sure where to begin.

I've looked at Microsoft's native import service through Purview but I have a few concerns:

• Some of the PST files are quite large — not sure how well it handles that
• I need to restore only specific folders for some users, not the entire PST
• I'm worried about data consistency after the restore
• Would prefer something that doesn't require too many admin roles or complex setup

For those who have done PST to Office 365 restores — what approach worked best for you? Any tools, tips, or things to watch out for that you wish you knew before starting?