Client Overview

A growing logistics company with offices in Regina and Saskatoon was undergoing a corporate restructuring. Their IT environment was managed under a single Microsoft 365 tenant shared by multiple business units. As part of the split, the client required a clean separation of users, mailboxes, and data into a new dedicated Microsoft 365 tenant — without disrupting daily operations.

Challenges

The client faced several technical and operational challenges:

  • Shared tenant with mixed user base and shared services (Exchange, OneDrive, Teams, SharePoint)
  • No downtime tolerance due to 24/7 business operations
  • Cross-tenant dependencies (shared mailboxes, shared calendars, distribution lists)
  • Regulatory requirement to separate company data
  • Need for minimal user disruption and full data integrity during migration

The complexity of splitting rather than merging made this project particularly sensitive — requiring meticulous planning and execution.

Our Approach

Accelerate IT Services Inc (AITS) led the project with a phased migration strategy, ensuring zero business interruption.

Phase 1: Discovery and Planning

  • Conducted full tenant inventory and dependency mapping
  • Identified critical mailboxes, shared resources, and OneDrive content
  • Established communication plan with end users and stakeholders
  • Configured new tenant architecture with licensing, security baselines, and compliance settings

Phase 2: Pre-Migration Setup

  • Established secure Azure AD Connect for identity synchronization
  • Configured hybrid coexistence for mail flow between tenants
  • Verified DNS readiness and routing rules
  • Implemented conditional access and MFA policies in the new tenant

Phase 3: Migration Execution

  • Performed staged mailbox and OneDrive migrations using advanced tools (BitTitan MigrationWiz / PowerShell scripts)
  • Validated permissions, shared calendar access, and Teams data post-migration
  • Ensured business continuity by maintaining parallel mail flow during cutover

Phase 4: Post-Migration Optimization

  • Cleaned up old tenant objects and licenses
  • Updated Intune and device management profiles
  • Conducted user training and post-migration support for a smooth transition

Results

Within two weeks, the client was fully operational on their new Microsoft 365 tenant — with no downtime or data loss.

Key Outcomes:

  • 100% successful mailbox and OneDrive migration
  • Zero user downtime — all users retained access during transition
  • Seamless Teams reconfiguration for collaboration continuity
  • Improved data governance and compliance alignment
  • Streamlined IT management with dedicated admin control

Client Feedback

“AITS handled our tenant split with incredible professionalism. Their planning and communication made what seemed like a complex process completely seamless. We didn’t lose a single email or file — and our users barely noticed the switch.”