If someone reports missing content after source access is gone, the migration team can’t confirm whether it existed in the source when the migration ran, and remediation gets much harder. That’s the main risk of closing a BitTitan program without business stakeholder sign-off.

A closure sequence that avoids it:

1. Verify all jobs completed their final pass and item counts are within tolerance of the source mailbox statistics.
2. Validate a sample of migrated accounts in the destination tenant: open mailboxes, test calendar access, and confirm OneDrive content.
3. Export the final BitTitan project data and archive it as the migration audit record.
4. Announce completion and get business stakeholder sign-off.
5. Decommission the migration service account in the source tenant and remove the BitTitan endpoint credential.
6. Archive or delete the BitTitan project according to your documented retention policy.

Does your closure sequence include business stakeholder sign-off before source access is removed?

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