If you are migrating Microsoft 365 workloads with BitTitan in whatever order is ready first, you can end up with day-one access issues, not because the jobs failed, but because the dependencies were not in place when the data landed.

BitTitan projects across M365 workloads need a deliberate sequence. Some workloads simply will not function correctly in the destination tenant until prerequisite components are provisioned, activated, or initialized.

To prevent post-cutover failures, start with the basics: destination user accounts must already exist and be licensed before any BitTitan job targets them. Exchange Online mailboxes need to be created and active in the destination tenant before mailbox jobs can write data successfully. For OneDrive for Business, personal sites must be initialized first, otherwise BitTitan cannot write to the destination personal site URL.

Teams migrations introduce another dependency. Teams channels rely on the SharePoint Online site collection behind each Team. If you migrate Teams before the underlying SharePoint content is accessible in the destination tenant, users may find Teams files missing or inaccessible even though the Teams job shows completed.

A sequence that consistently works is: tenant provisioning, then Exchange Online mailbox activation, then mailbox migration, then OneDrive initialization, then OneDrive migration, then Teams and SharePoint migration. Running workloads in parallel without confirming prerequisites lets BitTitan show clean completion while users hit access failures immediately after cutover.

Have you documented the dependency chain for each BitTitan workload in your program before setting project start times?

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