BITTITAN ONEDRIVE MIGRATION
Prepare the OneDrive user list for MigrationWiz.
Build the source-to-destination UPN list first, then upload it to the OneDrive project with Bulk Add.
Keep the preparation simple
01List usersAdd each source UPN and destination UPN.
02Check identitiesOpselith catches empty, duplicate and invalid UPNs.
03Download CSVCreate the MigrationWiz two-column Bulk Add file.
04Verify in MigrationWizUpload the CSV and run Verify Credentials.
Before you start
UPN accuracyUse the current Microsoft 365 usernames/UPNs for the OneDrive line items.
LicensingUsers must have OneDrive available in the relevant tenants.
PermissionsMigrationWiz requires the appropriate OneDrive/SharePoint permissions and site access.
Local processingOpselith does not connect to either tenant.
Quick answers
Can I reuse a mailbox mapping?
Often yes if the same users and UPN changes apply, but review every OneDrive line item because MigrationWiz expects the current account usernames.
Does Opselith provision OneDrive?
No. Provisioning and permissions are handled in Microsoft 365 and MigrationWiz.
What happens after upload?
Run Verify Credentials in MigrationWiz and review the line-item status before migration.
Use Opselith for the mapping work
Choose OneDrive in the BitTitan workspace and create the user Bulk Add CSV.
Vendor behavior checked against BitTitan: OneDrive to OneDrive migration guide. Opselith is independent and not affiliated with the vendor.