Are your mailbox migration passes producing duplicate data because the upload process wasn’t validated first?

BitTitan MigrationWiz is the most capable mailbox migration tool in the M365 space; it will absolutely wreck your cutover window if the account data going in is dirty. I personally reconciled data for hundreds of email accounts before uploading anything into MigrationWiz.

That reconciliation step isn’t optional.

Specifically: display name mismatches, UPN format differences between source and target tenants, and licensing gaps in the destination will all produce failed migration items that show up as errors only during the incremental pass and not during your pilot. By then you’re 12 hours from cutover.

I hold dual BitTitan certifications: MigrationWiz for M365 and MigrationWiz for Active Directory. The AD cert matters because identity misalignment is where most mailbox failures actually originate.

What validation steps are you running before your MigrationWiz upload?

#MigrationWiz #BitTitan #Migration