How do I split migrations based on child Public Folder count?
If Source Public Folders have more than 1000 folders below the top-level folder, it is important to work with BitTitan Support so that the migration can be split up, based on migration points after every 1000 folders.
Here are the steps to follow:
Get-PublicFolder -Recurse -Resultsize Unlimited | select Identity | Export-Csv -Encoding Unicode C:\folders.csv
Further details on what the split process will do: