Anyone Else Facing Public Folder Migration Errors in Exchange?

[IEdwardWeasley]

Hey everyone,

I’m running into some serious headaches while trying to migrate Public Folders from Exchange to Office 365 (Microsoft 365), and I’m wondering if anyone else here has faced the same issues.

Problems I’ve Encountered

• Stalled Migration Batches: Public folder batches keep getting stuck midway, forcing restarts.
• Size Limitations: Some folders are way too large, and the migration process either times out or corrupts data.
• Broken Permissions: Even when the data moves, folder permissions and shared access don’t always map correctly.
• Downtime Risks: Keeping mail flow active while migrating public folders is almost impossible with native methods.
• PowerShell Complexity: The manual scripts for public folder migration are too complicated and error-prone.

What I’ve Tried

• Native PowerShell scripts – worked partially but failed with larger public folders.
• Batch Migration in EAC – migration hangs or misses items.
• Tried splitting large folders – but this takes forever and still risks data loss.

What Finally Helped

After weeks of failed attempts, I ended up using the Shoviv Exchange Migration Tool. It allowed me to:

• Move public folders directly to Office 365/Exchange Online without downtime.
• Handle large-size folders without corruption.
• Preserve folder hierarchy & permissions accurately.
• Run incremental migration – so only new/updated items moved, saving time.

Now the migration is finally stable, but I’m curious…

Question for You All

Has anyone else here run into public folder migration errors? Did you manage to solve them with manual methods, or did you also end up going for a third-party solution?