Are you performing enterprise M365 migrations in the same way as you did Exchange migrations for 2019?

The primary risk I faced when I performed my first large Exchange mailbox transfer using BitTitan MigrationWiz was data loss. The conversation was centered around item counts, delta synchronization completeness, as well as whether the destination mailbox had been assigned the correct quota. This was a problem that could be solved with the right tool configuration, and active monitoring in between passes.

This conversation is still going on. It is now buried under four or five other conversations that did exist in 2019 but not the same way.

Tenant-to tenant complexity changed everything. The migration from a source Exchange environment to a destination Exchange Online tenant has now become two M365 tenants, each with their own Entra ID configurations and conditional access policies. They also have separate coexistence requirements.

The tooling evolved along with the complexity. BitTitan MigrationWiz evolved. Entra ID object migration was made possible by the introduction of purpose-built identity migration tools. Engineers must now understand how these platforms interact and not just configure one in isolation.

The scope of post-migration support has also changed. Solving Office 365 problems for clients in six countries following a cutover presents a different operational challenge than cleaning up after migration in a single tenant environment. The migration complexity increased the support footprint.

Certifications such as MCSE Productivity or AZ-104 go beyond credentials. These certifications are how engineers stay up to date with a field whose requirements change every two years.

What is the biggest difference between how you managed migrations three years back and what enterprise projects need today?

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