Have you ever uploaded a batch of accounts into MigrationWiz only to find half the jobs failed because the source data was wrong?

Reconciliation is the least glamorous part of a tenant migration and the most consequential. Before a single mailbox moved, I reconciled data for over 300 email accounts.

That means cross referencing the source tenant user list against the target tenant, validating UPNs, checking license assignments, identifying shared mailboxes versus user mailboxes, and confirming the BitTitan connector had the right credentials scoped to each account.

The reconciliation file isn’t a formality. It’s the control surface for your entire migration. Every decision about batching, sequencing, and scheduling flows from it.

I migrated more than 200 Exchange mailboxes using MigrationWiz. The pattern was the same in both cases: clean data in produces clean migrations out.

What does your current account reconciliation process look like before you open MigrationWiz?

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