What we do
Planning and design. Choosing the services you actually need, and Microsoft 365 security workshops so the configuration stays sound.
Introduction. From the first concept through a proof of concept to a phased rollout. Phased, because a migration done in one go fails on the exceptions rather than on the mailboxes.
Setup and configuration. The technical side of each service, and the policies behind them.
Operation. When something sticks later on, we answer.
Where it actually gets difficult
We get called in for Exchange Online and stay for Entra ID. The mailbox migration is manageable. Conditional access, guest accounts and the question of who is really a Global Administrator take considerably longer.
The second recurring item is storage. It moves from a file server with permissions that grew over fifteen years into SharePoint, and the permissions move with it. A migration is the only good moment to clean that up.