Microsoft 365 to Microsoft 365

Mergers, divestitures, rebrands and consolidations — the tenant you're leaving stays live while MigrateX rebuilds it, permission by permission, in the tenant you're moving into.

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Typical moves.

A merger

Two companies, two tenants, one future. Move the acquired tenant in waves by department while both keep working, then cut the domain over in one evening.

A divestiture

Carve out one business unit — its people, shared mailboxes, sites and Teams — into a fresh tenant without exporting a single PST.

A rebrand or region move

New name, new domain, new data residency. Same people, same history, same permissions on the other side.

Escaping a bad tenant

Years of accumulated mess? Migrate only the users and content you still need and leave the rest behind on purpose.

In detail.

Alpha rollout › General

Aisha Rahman12 Mar 2024, 09:14

Kickoff is Thursday — agenda attached.

Ben Carter12 Mar 2024, 09:20

I'll bring the risk register.

Hugo Fernandez12 Mar 2024, 10:02

Design review moved to Friday.

original authorsoriginal timestampsmigration mode

Imported in migration mode, history reads exactly as it did — who said it, when — then members are added.

Mailboxes

Full folder trees, archives, calendars with recurrence, contacts, rules and signatures. Original dates kept.

Shared mailboxes & groups

Shared, room and equipment mailboxes with Full Access and Send As, every alias, DLs and Microsoft 365 Groups with members.

OneDrive

Whole drives streamed through memory; sharing re-granted to the matched people; links and external shares listed.

SharePoint

Sites keep their URL alias and Owners / Members / Visitors; every library moves with dates and structure.

Teams

Migration-mode import keeps original authors and timestamps in channel history; files and members follow; staged until you say so.

Domains & cutover

Forwarding, final delta, domain release and claim in the target, MX/SPF/Autodiscover check, and a notice ready to send.

Carried across

Original dates Read / unread state Folder tree Flags & categories Shared mailbox rights File sharing Teams history & authors Calendar recurrence Aliases Signatures & rules

Listed for you, never guessed

Anonymous sharing links OneNote notebooks Teams apps & tabs Items over the target's size limit

The things that make a mailbox feel like yours the morning after — and the few that need a hand.

Inbox138 / 138complete
Sent Items92 / 931 missing
Calendar27 / 27complete
Contacts18 / 18complete
OneDrive16 / 16complete

Copy 1 missing itemread-only on both tenants

Every container counted on both sides; the exact items that never arrived are listed and copied on request.

Good to know before you plan

Private and shared channels, Planner, Forms and OneNote notebooks are outside the import APIs and are listed by name for manual follow-up.
Mailbox rules and signatures move; Outlook client settings (views, quick steps) do not.
The consenting Global Administrator needs no license; MigrateX uses application permissions granted once via admin consent.

Six steps, one page each.

Connect both tenants, assess, match users, migrate in waves, verify and keep in sync, cut over. Every step lives on its own tab with the numbers that matter and the next action ready.

Read the complete playbook

Open this route with a free assessment.

Connect the source tenant and see users, sizes, shared mailboxes, sites and Teams scored in minutes. Nothing moves until you say so.

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