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Tenant to Tenant Migration
Exchange Online Migration
Looking to migrate your Microsoft 365 Exchange mailbox data effortlessly?
With Apps4.Pro, start your Office 365 mailbox migration in just a few clicks. Enjoy a fast, secure, and simplified migration process-delivering hassle-free results in minutes with zero data loss guaranteed.
Mailboxes
Calendar
Contact
Tasks
15-days free trial & No credit card required.
Source
Tenant A
Target
Tenant B
Matthew Rob
IT Manager
4.9
We were nervous about migrating 670+ mailboxes especially the big ones 😟, but Apps4.Pro Exchange Migration handled them smoothly, including shared mailboxes. Best of all, archives moved seamlessly to target archive mailboxes
4.5
TRUSTED BY 15K+ ORGANIZATIONS
From Startups To Global Enterprises
Join 15K+ Happy Customers
How it Works
Migration in Just 3 Simple Steps!
Plan smarter, migrate seamlessly and validate with confidence.
Trust every step of your migration journey.
Migrate everything. Worry about nothing.
Pre-Migration Analysis
Gain clarity by generating a free inventory report before you migrate. Instantly assess readiness, minimize risks, and ensure a smooth migration.
Get Your Free Inventory Report Now! 🡢
Automated Migration
Seamlessly execute migrations without user intervention, saving time and handling large-scale, complex environments with ease.
Start Your Free Migration Today! 🡢
Post Migration Validation
Data verification after migration ensures all data is accurately transferred and guarantees users can access and use it smoothly.
Start Your Free Migration Today! 🡢
Tenant to Tenant Exchange Online Mailbox Migration
Ensure a flawless transition of your Exchange Online Mailbox from the source tenant to the target tenant with an exact replica of all critical data.
Maintain uninterrupted service and effortlessly resume Business as Usual activities after migration.
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Migrate All Microsoft 365 Mailboxes with Confidence:
- User Mailbox
- Shared Mailbox
- Archived Mailbox
- Group Mailbox
User Mailbox
Shared Mailbox
Archived Mailbox
Group Mailbox
Most Migrated
Highly Used
Trusted by IT
Why Enterprises Choose Us for Office 365 Migration?
Apps4.Pro helps IT teams streamline workflows, enhance productivity, and manage Microsoft 365 projects efficiently with seamless integration.
Microsoft Solution Partner
Apps4.Pro is a verified Microsoft Solutions Partner for Modern Work, helping organizations succeed in Microsoft 365 tenant migrations since 2011.
ISO Certified
Our ISO 27001 & 27701 certifications ensure security and privacy, trusted worldwide by enterprises like Teradyne, J&J, Atos, and more.
User Friendly
Apps4.Pro reduces complexity with an intuitive interface that supports planning, monitoring, and completing Microsoft 365 migrations confidently.
Fast and scalable
From small projects to full enterprise moves, Apps4.Pro supports every Microsoft 365 workload with consistent, reliable performance.
User Mailbox
Migrate User Mailboxes Across Tenants
The merges of cloud Exchange user mailboxes from one Office 365 tenant to another with precision.
Data Coverage: Mails, attachments, server-side rules, permissions, contacts, calendars, and tasks
Flexibility: Apps4.Pro offers advanced Category filters to selectively migrate emails, calendars, contacts, and tasks.
Guidance: Step-by-step instructions, refer to our Exchange Online Mailbox Migration Guide.
Get more details
Shared Mailbox
Shared Mailbox Migration Between Office 365 Tenants
Shared mailboxes allow a specific group of people to manage and send emails from a common mailbox.
Apps4.Pro Tool Support: Migrate shared mailboxes between Microsoft 365 tenants seamlessly.
Data coverage: It involves migrating the entire shared mailbox, including its emails, calendar items, contacts, and permissions.
Flexible Options: This tool also supports migrating shared mailboxes to M365 user mailboxes between tenants.
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Archive Mailbox
Archive Mailbox Migration
In-Place Archive provides additional storage space for Exchange mailboxes. If this feature is enabled in your organization, some of your data might reside in archive mailboxes.
Apps4.Pro Tool Support – Seamlessly migrate archive mailboxes in Exchange Online from one tenant to another.
Data coverage – Move archive emails, folders, and files.
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Group Mailbox
Migrate Office 365 Group Mailbox to Another Tenant
Effortlessly migrate O365 group mailboxes from one domain to another with just a few clicks.
Data Coverage: Migrate emails, calendars, folders, and files securely
Progress Tracking: Live migration tracking
Task Status: Detailed reporting for monitoring task status
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What’s Migrated
Apps4.Pro offers a flawless Exchange migration flooded with the key features highlighted as below.
- User Mailbox
- Calendar
- Tasks
- Public Folder with Permissions
- Contacts
- Server-side Rules
Explore the scope of mailbox migration to understand every data element we support.
Testimonials
What Our Clients Say About Us?
Real stories from IT leaders who rely on Apps4.Pro for seamless
Microsoft 365 migration.
Stephen Bala 
IT Infra & Cyber Defense Manager,UAE
4.9
Out of all the platforms we had to move, we were hesitant about migrating our Yammer communities tenant-to-tenant 😟, but Apps4.Pro really surprised us 😊
They preserved all our posts, conversations, files, and memberships while also supporting both internal and external networks.
What stood out most was their clear guidance, quick responses, and genuine support that made the whole process smooth and successful 🙌.
Denzel Dalton 
Computer Technician,
USA.
4.8
Apps4.Pro Planner Migration Manager made our Microsoft Planner migration seamless and hassle free 😌.
The tool efficiently handled complex needs, ensuring nothing was lost in the transition, and its intuitive interface and automation saved us valuable time and effort ⏳.
Bulk migration was effortless, and the reports kept us fully in control 🙌. We highly recommend Apps4.Pro for any organization for Planner migrations.
Martin Bergholdt
Information technology and services, Denmark
4.9
We recently completed our Yammer data center migration from the US to the EU 🌍, and the process went far smoother than expected 😊.
Historical conversations were fully preserved with minimal user disruption, which was a big relief 😌.
The team guided us from start to finish, kept compliance in check, and gave us confidence. I’d definitely recommend this solution to any organization making a similar transition✨.
Fabrice Langlois
Manager, IT Enterprise Architecture, Collaboration
4.8
Migrating our Yammer communities seemed complex 🧩, but Apps4.Pro made it smooth and hassle-free 🎯.
Its automation & flexibility let us pre-stage data, schedule migrations, and generate reports that kept us in control .
Despite years of data and large user base, the migration was fast, accurate, and disruption-free ⭐. Thanks to Apps4.Pro, we consolidated our Yammer networks and streamlined communications 🙌.
Mohan Venkatavarathan
Technology – Digital Transformation, Singapore
4.7
Migrating our Teams 1:1 and group chats 😅 was critical, and Apps4.Pro exceeded expectations 🚀.
The tool seamlessly and securely moved entire chat histories, attachments, and permissions while keeping conversations intact 🔒.
Easy to install and configure, it ensured minimal downtime so our teams could keep collaborating without disruption 🙌. If you’re looking for a reliable Teams chat migration tool, Apps4.Pro is the way to go! ⭐
Fabrice Langlois
Manager, IT Enterprise Architecture, Collaboration
4.7
We recently used Apps4.Pro Forms Migration to transfer our Microsoft Forms, and it worked flawlessly 😍. Setup was quick and straightforward, saving us hours of manual effort⏱️and the process was smooth.
Every form securely transferred with no data loss, and logs gave us full confidence nothing was missed.
The user interface is clean and easy to use 👌. we set up and tracked migration in just a few clicks. We’re really happy with the experience and would absolutely use it again 😀.
Venkatesh Narayanan
Head of Global IT,
Resillion
4.9
Migrating private chats in Microsoft Teams wasn’t as seamless as we expected 😓, finding the right tool proved to be a challenge.
We tested multiple solutions, but most had drawbacks, such as migrating only messages from a specific timeframe and having data limitations.
Apps4.Pro was the best decision 👍. it automated everything and kept chats intact with no data loss.
We even went beyond Teams chat to migrate Forms and Power Automate too 💯.
Benjamin Paurevic
Construction Industry,
Germany
4.8
We recently completed a Power BI workspace and report migration using Apps4.Pro, and the experience was outstanding 😃. From planning to cutover, the process was smooth, well-documented, and professionally executed.
Automation simplified migration while preserving configurations and access, saving countless hours of manual rework 📈
The team was highly responsive, guided setup and custom needs🚀. I would confidently recommend⭐ Apps4.Pro for reliable, efficient Power BI migrations.
Mike Maadarani
Cloud Solutions Architect, Ottawa, Canada
4.8
Once in contact with Apps4.pro’s sales team, we realized the Apps4.Pro can migrate not only Microsoft Planner but also Teams, OneNote and Wiki among others, and therefore decided to run the POC for all the components 😃.
After a 100% successful result, we trust Apps4.Pro for all our future migrations and have already moved 1,200+ plans 🎯 seamlessly and will keep helping MCM deliver to its clients.
The product was easy to use, and it migrated everything as expected 🙌.
Pablo Solano
Information Systems Architect – Messaging and Collaboration
4.7
Migrating a large number of users was a challenge, but Apps4.Pro Private Chat Migration made it much easier 😌.
Parallel task processing and multi-threaded execution sped up the migration, completing it on time without disruptions 🌟.
The tool handled high volumes of data effortlessly, and the team provided helpful best practices, ensuring a smooth setup and secure processing 🛡️.
Overall, it was a smooth experience, and we appreciate the outstanding support from the team 🙌.
Shoaib Akbar
Associate Director IT Global,
USA
4.9
At first, we were concerned 🤔 about how complex Yammer migration might be, but Apps4.Pro made the process stress-free and saved us valuable time. Their team handled everything from start to finish 👍.
The migration was smooth, with no data loss or business disruption 😊, and their clear communication kept us reassured throughout .
We’re extremely satisfied and would gladly recommend Apps4.Pro to anyone looking for a smooth Yammer migration.
Fabrice Langlois
Manager, IT Enterprise Architecture, Collaboration
4.7
Migrating a high volume of Power BI data felt like a challenge until we found Apps4.Pro 🤩.
The tool handled dependencies, permissions, and configurations at scale flawlessly, with helpful pre migration insights 👌
Overall, Apps4.Pro saved us an incredible amount of time compared to manual migration, and despite a few minor tweaks needed, and remains one of the best solutions 🏆 for a fast, efficient, and largely hassle-free migration, it’s a solid choice 💯.
Doug Punchak
Avvenire Solutions Inc
USA
4.8
I have to say, the Teams Migrator product has come a long way 😍 since I first started using it. The most recent migration of my client’s Teams went flawlessly!
This product is amazing and so much better 💪 when compared to the alternative Teams migration tools available that are either more expensive and do not provide the same capabilities.
Mohamad Nuzul Izwan
Group Business Technology,
PLI Petronas
4.8
Apps4.Pro Migration Manager was leveraged to merge the PLI Yammer network with the existing PETRONAS Parent network 😍.
The tool has smoothly migrated around 200 plans and 600 GB of Stream videos while minimizing user impact 👌.
As part of the migration, Apps4.Pro helped us to perform the group clean up and rename activities too. Thanks to their professional consulting service. The entire migration was smooth with least permissions reports saved us valuable time ⏱️.
Key Features
Powerful Features to Simplify Your Exchange Migration
Apps4.Pro provides advanced features to manage complex mailbox migrations and ensure a smooth tenant to tenant transition.
Custom Timeframe Migration
Migrate emails within a specific period (last 1 or 3 months) or set your own custom date range for greater control.
Mailbox Mapping
Automatically map mailboxes or use custom mapping for accurate alignment between tenants.
Comprehensive Mailbox Migration
Supports all types of mailbox transfers across tenants for a complete and reliable migration experience.
Custom Timeframe Migration
Migrate emails within a specific period (last 1 or 3 months) or set your own custom date range for greater control.
Mailbox Mapping
Automatically map mailboxes or use custom mapping for accurate alignment between tenants.
Comprehensive Mailbox Migration
Supports all types of mailbox transfers across tenants for a complete and reliable migration experience.
Incremental Migration
Migrate only newly added or modified data after the initial migration to save time and avoid duplication.
Post-Migration Reports
Get detailed reports with granular insights to verify success & ensure zero data loss.
FAQ
Frequently Asked Questions
Need quick help? Check our FAQs.
Still have questions? Chat with our 24/7 AI support agent.
Yes, a 15-days limited trial is available. To request a trial, please contact us at sales@apps4.pro and our onboarding specialist will assist you with the setup and customization of your trial.
Yes, our professional services team is available 24/7 to handle the migration process on your behalf. We operate under a signed NDA and perform each migration in a dedicated Azure virtual machine assigned to the specific customer.
Apps4.Pro is an ISO-certified organization, ensuring secure and compliant data handling.
Migrating a shared mailbox to Office 365 Mailbox follows a process similar to migrating a user mailbox. This includes transferring emails, calendar events, contacts, and mailbox rules, ensuring no data loss and minimal downtime
Apps4.Pro enables the smooth transfer of Exchange Online archive mailbox data, ensuring no data loss, minimal disruption, and complete preservation of emails, folder structures, and user access.
Yes, Apps4.Pro Migration Manager offers multiple mapping options, including automatic mapping and mapping via CSV. These features allow you to efficiently map source mailboxes to destination mailboxes and transfer public folders or mailboxes.
Yes, Apps4.Pro Migration Manager allows you to selectively migrate data such as emails, calendars, contacts, tasks, and rules. This flexibility enables you to tailor the migration process to meet your specific requirements.
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Still Have a Question?
Our AI Smart Assistant is available 24/7 to provide instant answers to your questions. Start a chat anytime to get the assistance you need.
Mailbox Migration Made Simple – Start with Apps4.Pro!
Fast, Secure, and Stress-Free Every Step of the Way.
15-days free trial & No credit card required.
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