Create a useful inventory
List your applications, data, users, access owners and existing hosting arrangements. Include the quiet dependencies: scheduled jobs, email services, integrations and backup processes.
Talk to the people using each system. A service that appears rarely used may still be essential at a particular point in the month. Record those operational requirements alongside the technical details.
Define success and acceptable disruption
Identify the reason for moving. It may be easier collaboration, less maintenance or more flexible capacity. Use that goal to compare options rather than assuming every workload needs the same destination.
Agree acceptable downtime, testing responsibilities and who can approve the final cutover. Keep access to critical systems under business-owned accounts.
Test the recovery path
A migration plan should explain how you will check the result and what happens if a check fails. Keep a rollback path appropriate to the data and application involved.
Backups are useful only when they can be restored. Plan a recovery test and verify application behaviour, permissions and integrations before calling the transition complete.
Review after the move
Check real usage, unexpected costs and operational friction after the first period of normal work. Adjust resources based on evidence rather than leaving the initial setup untouched.
Document ownership, monitoring and the process for changes. The objective is an environment your team can understand and maintain.