Make Office 365 tenant-to-tenant migration secure, fast, and risk-free
Rencore Governance gives you a central command center to assess, monitor, and prepare your Microsoft 365 setup for a smooth tenant-to-tenant migration. Gain a complete overview of usage, access, and risks across your environment. Reduce complexity, resolve issues fast, and migrate with confidence.
A migration is only as fast as your understanding of the tenant
Mergers, acquisitions, and restructures put a deadline on tenant-to-tenant migration, but every Microsoft 365 service keeps its data, permissions, and automations in its own admin center. Scoping the move by hand means weeks of jumping between them.
No single view of what you are moving
Each Microsoft 365 service holds critical data, permissions, and automations, and each keeps them in its own admin center. Rencore inventories every resource across 43 services before you migrate, so nothing important gets missed.
Outdated or duplicated content
Legacy SharePoint sites inactive for 90 days, orphaned Teams, and duplicate files add weight to every migration step. Rencore flags them before the move, so you migrate what the business uses and leave the clutter behind.
Misaligned access and permissions
Copying permissions without understanding the relationships between users, groups, and data carries compliance gaps into the new tenant. Rencore surfaces every SharePoint site with broken permission inheritance or unique permissions before migration copies the problem forward.
Overprovisioned licenses
Unused and overlapping licenses turn post-migration license planning into guesswork. Rencore flags over-licensed accounts and licenses with unused seats, so you right-size the estate before you carry it into the new tenant.
Disrupted automations and workflows
Power Platform workflows and scripts silently break when their dependencies move. Rencore finds automation dependencies and policy conflicts before cutover, so the processes people rely on keep running.
How Rencore helps you simplify tenant-to-tenant migration
Rencore Governance equips you with the visibility and automation needed to reduce complexity, minimize risk, and deliver a successful Office 365 migration from start to finish.
See every tenant in one place
M365 tenant-to-tenant migration requires full visibility. Skip the time-consuming jump between admin centers.
- Connect multiple tenants and all M365 services to one platform
- View unified data in real time
- Automate cross-tenant inventory creation with ease
Decide what moves and what stays behind
Don’t go in blind. Quickly locate and evaluate data relevant to your migration.
- Use pre-built checks to identify stale, duplicated, or non-compliant items
- Find automation dependencies and policy conflicts
- Uncover misconfigurations and permissions issues
Migration tooling and ongoing governance are two different jobs. Our comparison of ShareGate alternatives for Microsoft 365 governance covers what carries over once the move is done and the estate has to stay in order.
Keep every stakeholder on the same page
Ensure all stakeholders stay aligned with clear and timely reporting.
- Build and customize dashboards for migration readiness
- Automatically schedule and share reports
- Support executive decisions with transparent, actionable insights
Keep the new tenant under control
Ensure long-term control of your new tenant environment.
- Apply lifecycle policies to prevent future sprawl
- Monitor Copilot and AI usage with governance insights
- Stay compliant with GDPR and Microsoft 365 compliance standards
Trusted by security, IT, and platform leaders
Security, IT, and platform leaders use Rencore to see their Microsoft estate, cut cost and risk, and roll out Copilot and agents on a governed foundation.
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Rencore's centralized governance tool excelled at ensuring secure data in Microsoft 365 and minimizing the risk of unauthorized access.
Case Study
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With Rencore's scalable automation solutions, organizations can not only meet current challenges but also prepare themselves for future technological advancements.
Case Study
Philipp Widmer Head of Platform Services Universitätsspital Basel -
26% vs 3%
Organizations that govern Microsoft 365 well realize significant Copilot value 26% of the time, versus 3% for those that do not.
Gartner, 2025 Microsoft 365 Copilot Survey -
As we continue to expand our cloud capabilities, the foundation laid by Rencore Governance will undoubtedly play a crucial role in ensuring that each step forward is taken with confidence, security, and compliance in mind.
Case Study
Claude Bisdorff Head of IT Systems Ville de Luxembourg -
116%
ROI from Microsoft 365 Copilot once the program is adopted and governed, in Forrester’s Total Economic Impact study.
Forrester Total Economic Impact -
I currently estimate that we save around €80k per year by freeing up our IT admin team to do the work that counts.
Case Study
Undisclosed Former Lead O365 Competence Center Royal BAM -
71%
of enterprises name security and governance among their top challenges to deploying Microsoft 365 Copilot.
Gartner -
150,000+
AI agents in use at the average Fortune 500 company by 2028. Agent sprawl is the next sprawl.
Gartner -
With Rencore Governance we are able to reduce manual governance activities, improve our service quality and generate valuable insights across our Microsoft service stack.
Undisclosed Head of AI & Process Automation Wacker Chemie AG
Tenant-to-tenant migration FAQs
What is a tenant-to-tenant migration in Microsoft 365?
A tenant-to-tenant migration moves all or part of the users, data, and services from one Microsoft 365 tenant to another, typically during a merger, acquisition, or restructuring. If you are just starting out, here are five essential tips to keep in mind when migrating to Office 365.
How do I migrate users between Office 365 tenants efficiently?
Instead of recreating users manually, prepare a permission and group strategy in advance, then assign new users to those pre-defined settings to keep the setup consistent. It is especially important to follow best practices for M365 tenant segmentation and security to avoid compliance gaps during restructuring.
What services does Rencore support during an M365 tenant-to-tenant migration?
Rencore Governance acts as a pre-migration assessment platform: it inventories every resource across 43 Microsoft 365 services, from SharePoint sites and Teams to users, groups, licenses, and Power Platform automations, so you can prepare your environment thoroughly and avoid surprises.
How does Rencore help reduce migration risks?
Rencore maps the relationships between users, data, and processes, and lets you design your license and permission model before migrating users. That means smoother transitions and fewer compliance gaps. If your migration is part of a divestiture or spin-off, this webinar on assessing M365 tenants for a business carve-out goes deeper.
How does Rencore support SharePoint migration?
Rencore does not move content itself; it prepares your SharePoint environment for the tool that does. It identifies outdated and duplicate sites, maps permissions and access, and shows usage and ownership across the estate. Whether you are consolidating sites or ensuring proper SharePoint governance after the move, you decide with facts rather than guesses.
