Moving to Azure DevOps is on many roadmaps but rarely on a calendar. The reason is usually not the tooling. It is three things that are hard to decide. The first is how long the teams will be down. The second is what happens to years of history. The third is who owns the migration.

A checklist answers these questions by breaking the work into clear steps you can check off. It helps you avoid missed dependencies, keeps responsibilities clear, and gives you proof that each step was done.

Here is the full process in four phases.

Phase 1: Plan

Planning sets the scope and the approach before any data moves.

Define the purpose and scope. Write down why you are migrating. Common reasons are moving off TFS or Azure DevOps Server to Azure DevOps Services, consolidating projects or organizations, retiring old infrastructure, and standardizing process across teams.

Then define the scope.…