How to Move Azure DevOps Organization to New Organization

Azure DevOps doesn’t currently offer a built-in way to migrate an entire organisation. As Kidd_lp notes, you can mirror your Git repositories and export/import work items and YAML pipelines via REST or Excel, but boards and test plans have to be recreated. Some customers use the open-source Azure DevOps Migration Tools to copy boards and history between orgs, but that’s still a third-party solution and requires careful mapping and testing. Without such tooling you’ll need to rebuild boards/backlogs and reassign permissions manually. I recommend doing a trial migration in a test project to validate your process before committing.