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No-code integration platform for rich bi-directional sync

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Zero downtime migration to tool of your choice

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Keep Historical Data, Without Slowing Down Your Tools

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Migrate or restructure Azure DevOps Instances

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Blogs

Explore the latest in technology and best practices

Case Studies

Success stories from the field

White Papers

Actionable insights for your business challenges.

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See solutions in action

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Join discussions that drive results

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How to maintain data integrity during Jira Cloud migrations
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How to maintain data integrity during Jira Cloud migrations

This guide explains how to maintain data integrity during Jira Cloud migrations, and Jira migration in general, using Jira Cloud Migration Assistant (JCMA) with OpsHub Migration Manager (OMM). It covers what moves, where integrity breaks, the checks that keep data accurate, and how the two tools work together.

TFS to Azure DevOps migration with zero downtime

Move from Team Foundation Server (TFS) to Azure DevOps Services with full history, using OM4ADO, a guided migration tool with no scripts needed. The Free edition migrates work items, comments, attachments, links and TFVC changesets with no licence key, while your teams keep working.

TFS to ADO migration

Trusted by forward-thinking teams across the globe

Key considerations for TFS to Azure DevOps migration

Migrating from TFS involves moving interconnected DevOps data built over time.

TFVC history risk

Years of TFVC branches, merges, and changesets must move accurately. Losing version history breaks traceability and creates compliance concerns during audits.

Linked artifact complexity

Work items connect to builds, releases, repositories, and test cases. If relationships break during migration, teams lose visibility across delivery pipelines.

Custom template conflicts

Many TFS deployments use customized fields and workflows. Misaligned templates in Azure DevOps can corrupt data or cause incomplete migrations.

Identity mapping challenges

Users, permissions, and groups must map precisely. Incorrect identity alignment results in broken ownership and restricted access post-migration.

Downtime freeze risk

Pausing development for migration disrupts delivery timelines. Organizations cannot afford extended system freezes.

Project size and scale

Thousands of work items, repositories, and attachments increase migration risk. Small inconsistencies quickly multiply as projects grow.

Complete TFS migration with OM4ADO

OpsHub Migrator for Microsoft Azure DevOps (OM4ADO) lets you migrate a project from TFS to Azure DevOps as a controlled, staged process, not a one-time export, and you can start at no cost with the Free edition.

01

Zero downtime execution

Teams continue working in TFS while migration runs in parallel. Development does not stop during transition.

02

Incremental delta sync

After initial migration, only new or changed data syncs automatically. This enables safe validation before final cutover.

03

Phased migration execution

Execute migrations in controlled waves. Move selected projects, validate, then proceed, reducing big-bang risk and aligning timelines with business priorities.

04

Selective project migration

OM4ADO lets you migrate selected projects from each source instance in phases, moving what’s ready now and reducing big-bang risk.

05

Identity preservation model

Users and groups are mapped carefully to maintain traceability, ownership, and access control across environments.

06

Cross-version data transfer

Move data seamlessly across Azure DevOps or TFS versions and platforms while preserving integrity, history, and traceability throughout the migration process.

What gets migrated - Complete entity coverage

OM4ADO can migrate project from TFS to Azure Devops at no cost. It covers the core project data below:

Additional capabilities are available in the Pro edition:

Modernize TFS without disrupting your delivery

Download the Free edition and run your first migration today, or speak with our team to map out a migration plan that fits your timeline and scale.

5 Steps to migrate from TFS to Azure DevOps

Connect environments securely

Link TFS and Azure DevOps using secure credentials.

Define migration scope

Select projects, repositories, and entities to migrate.

Map identities and templates

Align users, permissions, and process configurations.

Execute migration sync

Run initial migration and enable incremental sync.

Validate cutover transition

Verify integrity and smoothly transition active teams.

Proven across teams of all sizes

Trusted by leaders in technology, aerospace, defence, and healthcare

Frequently Asked Questions

These are the questions we hear most often from teams planning Azure DevOps migration.

Is OM4ADO free for TFS to Azure DevOps migration?

Yes. The OM4ADO Free edition moves projects from TFS or Azure DevOps Server to Azure DevOps Services at no cost, with no licence key needed. It migrates work items with full history, comments, attachments, links and TFVC changesets. Setup, mapping and migration runs all happen in a guided interface, with no scripts needed, and teams can keep working because changes sync in the background.

Use a tool that migrates through the APIs of both systems rather than exporting to a file, because a file export leaves history and work item links behind. OpsHub Migrator for Microsoft Azure DevOps (OM4ADO) moves work items of every type with their full revision history, comments and attachments, along with TFVC changesets, their history and their links to work items. Cross-project links, embedded images and inline files come across as well, so descriptions and comment threads look the same in Azure DevOps as they did in TFS. TFS 2010 and later, up to Azure DevOps Server 2022, are supported without intermediate upgrades.
Are there any free or open-source tools for Azure DevOps migration?
Yes, there are three main free options. The OM4ADO Free edition is a guided tool that migrates work items with full history, comments, attachments, links and TFVC changesets from TFS to Azure DevOps Services, with no scripts and no licence key. It covers up to 1,000 work items and 1,000 TFVC changesets, which suits pilot migrations and smaller projects. Microsoft’s Data Migration Tool imports a full collection, but the server must first be upgraded to a recent supported version of Azure DevOps Server. The open-source Azure DevOps Migration Tools are set up through configuration files. The OM4ADO Pro edition removes the volume limit and adds test plans, pipelines and other entities.
How do I plan a smooth migration to Azure DevOps?

Five steps. Connect TFS and Azure DevOps using secure credentials. Define the scope by selecting projects, repositories and entities. Map identities and templates so users, permissions and process configurations align. Run the initial migration and enable incremental sync. Validate integrity and transition teams. Most of the planning effort belongs in mapping and validation rather than the transfer itself, so settle field and workflow mapping and the identity list early. Migrating in waves shortens the wait for the first group of users, because one project can go live while the next is still being scoped.

What are common challenges faced during Azure DevOps migration and how to overcome them?

Six come up repeatedly. TFVC history has to move accurately, including branches, merges and changesets, or traceability breaks at audit. Work items link to builds, releases, repositories and test cases, and those relationships have to resolve in the target. Customized fields and workflows may not align with the target process template. Identity mapping, if done loosely, leaves broken ownership and restricted access after cutover. Teams are usually asked to keep delivering throughout. And as projects grow, small inconsistencies multiply. Each is answered the same way: migrate through the APIs with explicit mapping, run in waves, and reconcile source against target before anyone switches.

Can I migrate from Azure DevOps Services (cloud) back to Azure DevOps Server (on-premise), and how?

Yes. OM4ADO can move projects from Azure DevOps Services back to Azure DevOps Server, keeping work item history, comments, attachments and links. The process is the same as any OM4ADO migration: connect both systems, choose what to migrate, map users and templates, run the migration, and check the results. This path is part of the Pro edition, while the Free edition covers the most common path, TFS to Azure DevOps Services.

Plan your TFS to Azure DevOps modernization

Book a free 30-minute consultation with our Azure DevOps migration experts. We'll assess your TFS environment and design a risk-free migration roadmap.