Successfully migrate your TFS to the cloud by understanding various migration methods and the essential steps involved. Assess whether to retain your TFS Build Server and consider appropriate actions for managing data related to former employees.
The 7 options are:
Planning is an important part of your TFS Migration to the cloud therefore it is highly recommended to read the TFS Migration Guide.
After you migrate to the cloud you will want to keep your TFS Build Server because you Build Definitions are preserved during the migration. All you have to do is to reconnect the Build Controller and Build Agents to the new account.
When migrating from TFS to the cloud you will find that a list of historical users may be quite long.