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M365 Tenant Migration

πŸ“§ M365 Migration

M365 Tenant Migration

Inputiv enabled a smooth Microsoft 365 tenant-to-tenant migration post- merger, transferring domains, mailboxes, and all user data with zero disruption to daily operations.

Industry

Financial Services

Services

Email Migration

Location

Longmont, Colorado

Duration

2 days

Tech Stack

Microsoft 365 Β· GoDaddy

⚠️

Business Problem

Following a corporate merger, the organisation needed to consolidate two Microsoft 365 tenants into one. The goal was to migrate all user mailboxes, Teams data, SharePoint sites, and OneDrive content β€” plus transfer the primary domain from GoDaddy β€” with no email downtime and no data loss during business hours.

βœ…

Our Solution

We executed a cross-tenant migration using Microsoft's Cross-Tenant Migration tooling, pre-staged all mailboxes for 24 hours before cutover, performed domain transfer out-of-hours, and completed the full migration in a single weekend window β€” all users reported full functionality Monday morning.

Project Plan

1

Tenant Inventory

Audited source tenant β€” all users, mailboxes, Teams, SharePoint sites, and licensing. Mapped users between source and destination tenants.

2

Pre-Stage Mailboxes

Used Microsoft Cross-Tenant Migration tool to pre-stage all mailboxes into the destination tenant over 24 hours β€” users experienced no change during this phase.

3

Domain Transfer

Coordinated GoDaddy domain transfer and MX record cutover during a Friday night window. New MX TTL was pre-lowered to 300 seconds to minimise mail queue time.

4

Final Cutover & Verification

Completed final mailbox sync, updated all Outlook profiles, verified Teams and SharePoint access. All users verified and signed off by Sunday evening.

Outcomes

2

Days

Full tenant migration completed

0

hrs

Email downtime during cutover

100

%

User data transferred intact

"Post-acquisition tenant consolidation is one of the highest-risk projects we take on. Inputiv handled the domain transfer from GoDaddy, the mailbox pre-stage, and the Friday night cutover flawlessly. Every user was verified and live by Sunday. I'd send them back to this client tomorrow."

β€” Operations Manager Β· MSP, Colorado

Tech Stack

πŸ“§ Microsoft 365

πŸ”€ Cross-Tenant Migration

🌐 GoDaddy DNS

πŸ’¬ Microsoft Teams

πŸ“ SharePoint

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Project Details

Migration type

Cross-tenant

Domain registrar

GoDaddy

Delivery model

Fixed-cost project

Need a tenant migration?

We've done these dozens of times. Zero downtime is our standard.