SysInfo Microsoft 365 Tenant to Tenant Migration Tool

Q: Is it possible to migrate SharePoint and OneDrive with this software?

Yes. The tool securely handles SharePoint mailbox transfer to another site, including all lists, libraries, and other data. Even OneDrive file migration with metadata is performed accurately with the settings and permissions.

Q: Can I export Microsoft 365 mailboxes using this tool into .pst files?

Yes. The tool can export directly to PST with advanced features and filters, such as custom destination folders, folder hierarchy naming scheme, splitting one .pst by file size, and selectively exporting attachments. All of this is useful for archiving purposes, litigation support, or offline backup of M365 mailbox data before decommissioning the Tenant.

Q: Can I migrate without Global Admin access to tenants in Microsoft 365?

For cross-tenant mailbox migrations, you must have Global Admin-level access in both source and destination Tenants. This is a requirement of the Microsoft platform, and not an issue with the tool. Exchange Online only uses admin-level authenticated user accounts to call the mailbox migration Graph API. To make this happen, the tool uses admin consent when performing an OAuth login to request the necessary Graph API permissions in a single transaction.

Q: Will the folder structure remain intact after migration?

Yes, they will. The Inbox, sent items, drafts, deleted items, and all custom sub-folders will remain as they were in the source Tenant when they arrive in the destination Tenant. You will see the entire folder structure before transfer in the pre-migration preview to ensure the integrity.

Q: How long does it take to perform Microsoft 365 tenant to tenant migration?

Migration time depends on the mailbox volume, the total count, the number of items per folder, and the Microsoft Graph API throttling limit. Typically, a 38 GB archive transfer completes in under 2 hours.

Q: Is it possible to perform incremental migration with this software?

Yes. Microsoft 365 Tenant to Tenant Migration Tool allows incremental migration logic with the Skip Previously Migrated filter. This helps avoid deduplicating data, saving time as well as storage and bandwidth for optimized migration of all tenant mailboxes, SharePoint sites, and OneDrive files and folders.

Q: Can I filter which data to migrate from the tenant accounts?

Yes, you can perform the filtration in all mailboxes, SharePoint, and OneDrive based on date range, file size, file extension, and content types (only SharePoint). It will ensure that only the required data is moved and all unnecessary items are skipped.

Q: Is the Microsoft 365 Migration Tool compatible with macOS?

Of course, yes. The specialized software is compatible with all versions of the Mac OS (complete M Series) as well as Windows OS (including 11). It also provides 24*7 technical support for any challenges faced during the migration or deduplication.

Q: How can I ensure my data security is maintained during the migration?

All migrations are API-based, encrypted, and follow secure authentication protocols via Graph API and modern OAuth 2.0, ensuring that sensitive business data is protected during transfer. Moreover, nothing passes through SysInfo servers, so your data and credentials remain yours, highly secured.

Q: Can I monitor the migration progress in this Tenant to Tenant Migration Tool?

Yes, you can monitor migration progress through the Active Tasks and migration logs dashboard. It allows real-time verification of the migration progress and error identification. You can even check data completely transferred, skipped, failed, etc.

Migrate Microsoft Tenant, SharePoint, and OneDrive to PST or Another Tenant Securely

★★★★★ (Average Rating 4.9 Based on 1979 rating)

SysInfo Microsoft 365 Tenant to Tenant Migration Tool is a powerful desktop application for Windows and macOS, connecting two tenants via OAuth 2.0. It copies Microsoft 365 mailboxes, OneDrive files, SharePoint sites, calendars, and contacts from one tenant to another using Graph API, ensuring no loss and downtime. No need for complicated scripts or lengthy manual processes that require technical expertise. Instant, secure, and reliable migration for your entire mailboxes with Global Admin Access on both tenants.

Move Email, OneDrive, SharePoint, and Shared Mail between different tenants on Microsoft 365.
Data passes directly between source and destination tenants over TLS-encrypted HTTPS
Incremental transfers can be performed (with duplicate detection and filtering of individual date ranges).
Supports deduplication for storage optimization and saves data in a clean, structured PST or migrates to Office 365.
Uses advanced encryption standards for preserving data integrity, compliance, and performance.

Available for:

Free Download 100% Safe & Secure Purchase Now 30 Days Moneyback*

*SysInfo Microsoft Tenant to Tenant Migration Tool is 100% Safe to Download

Features Specification
Software Guide Screenshots Video

852K+ Downloads

190+ Countries Worldwide

15+ Years Experience

100% Data Integrity 99.9% Uptime OAuth2.0/Modern Auth Duplicate Removal Bulk Migration Guaranteed No Data Loss Demo Available 30-day Money Back Guarantee 24*7 Technical Support

Why Microsoft 365 Migration Tool for Enterprises?

Discover how the Office 365 Migration Tool simplifies Tenant to Tenant Migration

Manage Microsoft 365 accounts with administrative access in no time.
Perform batch mail processing for bulk volumes with centralized control.
Secure tenant-to-tenant, SharePoint, and OneDrive migration with no loss.
Preserve the original data and structural integrity of all emails, attachments, collections, and files.
Allows you to copy mailboxes to PST with parent naming and destination.
Date Range Filter for selective mailbox copy and data migration across tenants.

Allows delta migration with the Skip Previously Migrated feature to eliminate redundancy.
Built for direct Microsoft 365 tenant export to industry-standard Outlook PST format.
Option to Split PST Files and handle email attachments (inclusion/exclusion) as desired.
Has an Active Tasks window to check the progress of the mailbox migration.
Provides real-time live processing with detailed reports of the migration process in the All Reports section.
Supports all the major versions (current and older) of Windows and Mac OS.
Free Trial allows migrating 50 emails per folder, OneDrive files < 20MB, SharePoint files < 20MB, and upto 5 list items per List.

One Tool For Total Control Over Your Microsoft Migration

Transfer Microsoft Tenant or SharePoint to Another Tenant or Save Data Locally-All In One Place!

Microsoft Tenant Mailboxes

Relocate all items within a mailbox to another mailbox without missing any metadata or folder structure. This includes moving all emails, including drafts, attachments, sent items, and deleted items from primary and shared mailboxes.

Contacts and Calendar

When transferring calendar items (e.g., events, recurring meetings, etc.), or contacts of the personal mailboxes, all participants and sharing options will be maintained on the new tenant with 100% preservation.

SharePoint Sites and Mailboxes

The full migration of SharePoint document libraries/lists/pages/site collections, and permissions while maintaining the associated users, will be performed via Graph API, maintaining mapping and site architecture.

Microsoft 365 OneDrive Files

OneDrive content (file metadata, sharing permissions, folder structure, versioned docs) can be moved from tenant to tenant without causing any interruptions or data loss for user storage ecosystems.

When SysInfo Microsoft 365 Migration Tool is Needed?

Popular scenarios where this dedicated Microsoft Office Tenant to Tenant Migration Proves Useful.

Merger and Acquisition (M&A)

Combine the data from a separate Office 365 tenant you're acquiring into your tenant to access mailboxes, SharePoint sites, and OneDrive accounts altogether. Consolidate data in a centralized environment and retain access permissions and user identity mappings. Best to simplify the administrative control and governance management for multiple tenants.

Restructuring of Organizations

If you are splitting one tenant into three or more or consolidating numerous tenants into one (global), this tool allows you to conduct a selective migration to maintain structure and continuity. Make sure no disruption occurs with active users and assign tiered licences according to the organization's and departments' requirements, configurations, and rights.

Large-Scale Tenant Migration

If you have multiple departments/tenants with thousands of mailboxes merging into one global location, the need for deduplication of files becomes greatly increased. Requires migration throughput with a load-balancing mechanism and appropriate mailbox mapping with each user. Prepares detailed migration logs and output summary reports for audit and compliance.

Core Capabilities of the Tenant-to-Tenant Migration Tool

Explore how this Tenant Migration Tool simplifies large-scale business-critical migrations.

Reliable Multi-Tenant Migration

Migrate data between multiple Microsoft 365 tenants securely with the specialized software. It helps in restructuring domains, merging tenants securely and accurately with zero data loss. You can migrate and copy Mailboxes, SharePoint sites, and OneDrive data with proper mapping and de-duplication.

Source and Destination Mapping

SysInfo Microsoft 365 Migration Tool allows mapping the source and destination tenant accounts, OneDrive, and SharePoint sites to ensure that each piece of data moves to the correct mailbox. It helps eliminate redundancy, manage storage, and access emails easily with custom saving or mapping to native folders.

Incremental Migration of Mailboxes

The Skip Previously Migrated feature in all three sources allows you to ensure that no data is moved twice. It ensures that only the unique data is migrated and skips it with Microsoft’s Graph API to avoid overwriting or duplication of the mailboxes.

Selective Migration with Date Range

Transfer all emails according to a limited timeframe. Set Start and End dates. This is particularly important for phased migrations, organizations with legal holds, and organizations that don’t want to migrate years of "noise" (irrelevant emails).

De-Duplicating Similar Mailbox Data

Before or during the migration of emails, the SysInfo Microsoft 365 Migration Tool allows you to flag (and remove) duplicate emails based on the data in the following fields: From, To, Subject, BCC, and Body of the email. This allows for a clean mailbox at the end of each migration.

Export Microsoft Mailboxes to PST

No requirement for an additional tenant? You can export Microsoft 365 mailboxes directly to a PST. You can choose destination folders, apply custom naming, splitting the PST doing so by either size and manage attachments selectively for archive/litigation purposes.

Modern OAuth 2.0 Authentication

Use Microsoft’s authentication portal directly for login. There are no passwords saved in the tool. Full compatibility for MFA. The admin consent for permissions for the software is managed entirely via Graph API and will not require any alternative methods.

Intelligent Attachment Handling

Office 365 Tenant to Tenant Migration Tool allows smart attachment handling during the email migration process. You can choose to migrate emails with attachments or exclude attachments to reduce mailbox size with specific controls for optimized storage and quick migrations.

File Size Filter for Custom Migration

When migrating OneDrive and SharePoint, you get a file size filter to set minimum and maximum file size limits before starting the migration. This means you can skip very large files or smaller ones as required. It helps optimize speed and reduce bandwidth during the migration.

Filter Data by File Extensions

SysInfo Microsoft 365 Tenant to Tenant Migration Tool has a file extension-based filtration option in SharePoint and OneDrive. It allows you to include or exclude specific file types by extensions, such as .pdf, .docx, .xlsx, or .jpg. This reduces the migration time and transfers only relevant data.

Refine with Content Type Filtering

The Content Type Filter (Only Documents or Only Lists) is available only with SharePoint Migration within the SysInfo Microsoft Tenant to Tenant Migration Tool. It allows admins to manage the migration of only documents, only lists, or both as required, avoiding unnecessary transfers for scalable site management.

Mapped Default Mailbox Folders

Migrate into Mapped Default Folder is only a feature available with Mailbox Migration. It moves emails from one tenant to another tenant account in the same default folder, like Inbox, Sent, Drafts, and Deleted (Trash). This way, everything gets stored in its right place without any mix-ups, and the mailbox looks familiar after the migration.

Live Migration Progress Tracking

Track your active migration tasks and verify the progress of each of the folders during migration with real-time evaluation. View full migration reports when successful. You can identify where you have had failures or exceptions with your migration, so you don’t have to complete the entire migration task again to fix any issues.

System Compatibility and Demo

The reliable software functions extremely well on the latest and previous versions of Windows and Mac OS. It allows you to run a pilot test to evaluate the functionalities and freely migrate upto 50 emails per folder. Files larger than 20 MB are skipped both in OneDrive and SharePoint, and only 5 lists are transferred for free.

Proactive De-Duplication for Enterprise Professionals

Skip redundancy and optimize your storage before Tenant migrations with M365 Migrator

Email Mailbox Deduplication

Identify and skip similar emails across your tenant mailboxes. SysInfo Microsoft 365 Tenant to Tenant Migration Tool connects securely via Modern Auth and scans emails, attachments, and folders to manage duplicates accordingly. Furthermore, it preserves metadata, headers, and content alongwith mailbox consistency. Allows you to preview emails before deleting them using selective date range, sender, and subject filtration. Also, avoids reprocessing with incremental scanning and offers safe modes to delete data permanently, move to bin, or move to another custom folder.

SharePoint Deduplication

Manage duplicates across multiple SharePoint sites, libraries, and connections with advanced duplicate detection. Use the Microsoft Graph API to connect and fetch duplicate data accurately by metadata, file properties, and content-based analysis. Perform hash-based scanning with the Microsoft Office Tenant to Tenant Migration Tool on all SharePoint document libraries, folders, and structured repositories efficiently. Keep original permissions, repositories, metadata, and folder hierarchy intact during the de-duplication.

Microsoft OneDrive Deduplication

Use the OneDrive Deduplicator within the Office 365 Tenant to Tenant Migration Tool, built with advanced algorithms by SysInfo. Based on the Graph API, it works even after the EWS retires and maintains the original integrity of the content, metadata, and headers. It even preserves the original file and folder structure while detecting duplicates with hash-based scanning. Detects and removes duplicates across multiple OneDrive accounts while ensuring no data is replicated when clearing OneDrive for optimum storage and efficient data handling.

Software Specifications

Go through the specifications of this SysInfo Microsoft 365 Migration Tool so that you can install it quickly.

About Product

Version:	26.04
Size:	201 MB
Release Date:	07 May 2026
Language Supported:	English
Edition:	Single, Administrator, Technician, and Enterprise

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System Requirement

Processor:	Intel® Core™2 Duo E4600 Processor 2.40GHz
RAM:	4 GB (8 GB Recommended)
Hard Drive:	512 GB
Supported Windows:	11, 10, 8.1, 8, 7, 2008, 2012 (32 & 64 Bit), and other Windows versions.
Microsoft 365 and Office 365 Plans:	Enterprise (E1, E3, E5), Business, Academic (A1–A5), Frontline (F1), and Exchange Online.
Outlook Versions:	Office 365, 2019, 2016, 2013, 2010, 2007, 2003, 2002, 2000, 98, and 97.
Supported Mac:	Entire M Series (M1, M2, M3, and more).

Demo Version

SysInfo Microsoft 365 Tenant to Tenant Migration demo has a limit of migrating 50 emails from each folder. It skips over any files larger than 20 MB on SharePoint or OneDrive, and allows for 5 list items to be migrated from each SharePoint list. Additionally, this trial version allows you to preview duplicates but does not give you the ability to delete them. The number of mailboxes and OneDrive items that can be moved over is limited by the user, while the number of SharePoint items that can be migrated is limited by the site. For complete access, upgrade to the premium versions.

Additional Information

User's Installation Guide Customization Plan EULA

Secure Microsoft 365 Data Resilience for Enterprises

Perform consistent migration across Office 365, SharePoint, and OneDrive with automated scheduling, immutable storage, and policy-driven backup. From the granular, point-in-time migration to the end-to-end encryption and role-based access control, the SysInfo Microsoft 365 Tenant to Tenant Migration Tool complies with tight industry regulations. It is designed to scale and remain highly available while protecting your mission-critical data with full integrity and reliability.

Graph API Integrated Migration

M365 offers basic migration, but it’s insufficient for large businesses and enterprises. Within the Shared Responsibility Model, Microsoft can ensure that the platform is secure, but migration is still upto the user. Therefore, using the native tools can result in permanent irrecoverability of emails, files, and SharePoint sites' content lost due to expired recycle bins, inactive accounts, accidental deletions, or overwritten data.

SysInfo Microsoft Tenant to Tenant Migration Tool uses Graph API (official interface for Microsoft services access). This provides granular, secure, reliable, and scalable tenant backup and migration. It enables direct access to tenant mailboxes, SharePoint sites, libraries, and OneDrive accounts, supporting delta migrations with preserved metadata and structural consistency, something that native tools cannot offer. This helps gain complete control, eliminate permanent loss risks, and strengthen legal compliance and data retention strategies.

Common Troubleshoots and Fixes

Admin Sign-In Blocked?

Move to Azure AD → Users → [Admin Profile] → Sign-in status → Set Enabled. It is not an issue with the software but a Microsoft setting

Non-existent Site/Destination Mailbox:

Create sites and destinations in the Microsoft 365 Admin Center beforehand, as the tool doesn’t support their creation.

Wrong SharePoint permissions post-migration?

In SharePoint Admin Center, conduct permission audits. The permissions will be copied as-is; some very complicated nested structures will need to be reviewed manually.

Migration Entirely Failed? Need Rollback?

No source data is lost; everything is completely intact. Verify the CSV migration report to see what part of your migration failed. Fix the problem and re-run the migration. Review any partially migrated data in the destination before migrating again.

Pre-Migration Checklist for SysInfo M365 Tenant to Tenant Migration Tool

Access and Authentication

Global Admin account on the source and destination tenant
Modern authentication is enabled from Microsoft 365 admin permissions
Admin accounts have sign-in enabled and are not blocked on Azure AD
Access to Multi-factor authentication via OAuth 2.0 login
Use Admin Impersonation Login when Modern Auth is unavailable

Destination Mailboxes, SharePoint, and OneDrive Accounts

Destination mailboxes should exist beforehand with assigned licenses
SharePoint site collections must be created and accessible
OneDrive accounts should be activated for all target users

Network and Firewall

Outbound HTTPS (Port 443) should remain enabled for Graph API login
VPN support is recommended for high-latency connections
NAS / SAN storage can be used for maintaining local backup files

Migration Timeline

A 20 GB mailbox migration may take approximately 1.5–2 hours
Large SharePoint sites may require additional migration time
OneDrive transfers depend on file count, size, and bandwidth

Consolidating 3 Tenants After Internal Restructuring

Background Case:

A mid-sized organization restructured its regional operations.
3 separately managed Microsoft 365 tenant accounts need consolidation.
Each tenant has its own Mailbox, SharePoint Site, and OneDrive account.
Everything is managed under a single company-wide tenant.
The legacy tenants are soon to be decommissioned, and the timeframe is a few weeks.

Challenges:

All 3 departments worked independently and exchanged documents and emails regularly.
The total data was around 5 TB, but without any estimates for duplicated items.
Manually migrating multiple tenants with such a high volume of data was practically impossible.

Solution Opted For:

Loaded the entire tenant scope within the SysInfo Microsoft 365 Migration Tool.
Around 200 mailboxes, 5 SharePoint Sites, and 100 OneDrive accounts were found.
Performed the deduplication scan before the migration with Email, SharePoint, and OneDrive De-Duplication Feature.
1.25 TB of data, approximately, was identified as duplicates. 3.75TB was the actual data to be transferred.

Results

Migration completed successfully, keeping everything preserved before tenants' decommissioning.
Delta migration ensured no item was repeated, and they were able to secure a local backup for the mailbox in PST.

Try Before Committing With the Microsoft 365 Migration Tool Demo

Compare the Free Office 365 tenant to tenant migration tool and Paid Versions for a better understanding

Product Features	Free Version	Full Version
Tenant Mailbox Migration	50 Emails Per Folder	Full
Export to PST	50 Emails Per Folder	Full
SharePoint Lists and Files Migration	Only files Smaller than 20 MB	Full
OneDrive Data	Only files Smaller than 20 MB	Full
Folder Hierarchy and Data Integrity
Data Deduplication	Only View	View and Deletion
Date Filter
Delta Migration, aka Skip Previous Migration
Batch Migration
Custom Mapping
Modern and Admin Authentication
Migration Reports
Windows and Mac OS Compatible
24*7 Tech Support and 100% Secure
	Download	Buy Now

Why SysInfo for Reliable Tenant to Tenant Migration?

Choose SysInfo for your tenant-to-tenant migrations because of its 15+ years of proven reputation in email migration and enterprise-grade, reliable, and secure solutions. Automate complex mapping and transfer process, significantly reducing the chances of human errors, and move critical data- Mailboxes, SharePoint sites, and OneDrive without quality compromises. SysInfo prioritizes data integrity, no downtime, and offers comprehensive support to keep your credentials private during the migration. With professional-grade performance, execute simplified transitions between multiple tenants securely and effectively.

For more queries and concerns, reach out to expert support 24*7 via Live Chat or Call

Frequently Asked Questions

Check the doubts our clients have related to this software and how we have resolved them.

Q1. Is it possible to migrate SharePoint and OneDrive with this software?

Ans: Yes. The tool securely handles SharePoint mailbox transfer to another site, including all lists, libraries, and other data. Even OneDrive file migration with metadata is performed accurately with the settings and permissions.

Q2. Can I export Microsoft 365 mailboxes using this tool into .pst files?

Ans: Yes. The tool can export directly to PST with advanced features and filters, such as custom destination folders, folder hierarchy naming scheme, splitting one .pst by file size, and selectively exporting attachments. All of this is useful for archiving purposes, litigation support, or offline backup of M365 mailbox data before decommissioning the Tenant.

Q3. Can I migrate without Global Admin access to tenants in Microsoft 365?

Ans: For cross-tenant mailbox migrations, you must have Global Admin-level access in both source and destination Tenants. This is a requirement of the Microsoft platform, and not an issue with the tool. Exchange Online only uses admin-level authenticated user accounts to call the mailbox migration Graph API. To make this happen, the tool uses admin consent when performing an OAuth login to request the necessary Graph API permissions in a single transaction.

Q4. Will the folder structure remain intact after migration?

Ans: Yes, they will. The Inbox, sent items, drafts, deleted items, and all custom sub-folders will remain as they were in the source Tenant when they arrive in the destination Tenant. You will see the entire folder structure before transfer in the pre-migration preview to ensure the integrity.

Q5. How long does it take to perform Microsoft 365 tenant to tenant migration?

Ans: Migration time depends on the mailbox volume, the total count, the number of items per folder, and the Microsoft Graph API throttling limit. Typically, a 38 GB archive transfer completes in under 2 hours.

Q6. Is it possible to perform incremental migration with this software?

Ans: Yes. Microsoft 365 Tenant to Tenant Migration Tool allows incremental migration logic with the Skip Previously Migrated filter. This helps avoid deduplicating data, saving time as well as storage and bandwidth for optimized migration of all tenant mailboxes, SharePoint sites, and OneDrive files and folders.

Q7. Can I filter which data to migrate from the tenant accounts?

Ans: Yes, you can perform the filtration in all mailboxes, SharePoint, and OneDrive based on date range, file size, file extension, and content types (only SharePoint). It will ensure that only the required data is moved and all unnecessary items are skipped.

Q8. Is the Microsoft 365 Migration Tool compatible with macOS?

Ans: Of course, yes. The specialized software is compatible with all versions of the Mac OS (complete M Series) as well as Windows OS (including 11). It also provides 24*7 technical support for any challenges faced during the migration or deduplication.

Q9. How can I ensure my data security is maintained during the migration?

Ans: All migrations are API-based, encrypted, and follow secure authentication protocols via Graph API and modern OAuth 2.0, ensuring that sensitive business data is protected during transfer. Moreover, nothing passes through SysInfo servers, so your data and credentials remain yours, highly secured.

Q10. Can I monitor the migration progress in this Tenant to Tenant Migration Tool?

Ans: Yes, you can monitor migration progress through the Active Tasks and migration logs dashboard. It allows real-time verification of the migration progress and error identification. You can even check data completely transferred, skipped, failed, etc.

Q11. Will the tool support migrating shared and group mailboxes?

Ans: Yes, the SysInfo Microsoft Office Tenant to Tenant Migration Tool allows migrating shared mailboxes, primary mailboxes, and application access accounts. With it, the collaborative environments are completely preserved during tenant to tenant migration or backup.

Q12. Can I perform a large enterprise cross-domain migration with this tool?

Ans: Yes. SysInfo Microsoft 365 Migration Tool supports cross-domain and tenant to tenant migrations, consolidating multiple accounts across multiple domains or to new tenants. It easily handles high-volume mailboxes, SharePoint sites, and OneDrive accounts with centralized administrative control for managing users and monitoring tasks reliably.