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Microsoft 365 Tenant Split Enabling Agile Growth for Two New Businesses

Microsoft 365 Tenant Split—Enabling Agile Growth for Two New Businesses

Client

Our client is a rapidly growing mid-sized enterprise in the United States, with a diverse team operating across multiple strategic locations. Focused on adopting advanced technologies, the organization is dedicated to improving operational efficiency while providing a seamless and efficient experience for its employees.

Challenge

Splitting a unified Microsoft 365 tenant—home to core communications, files, business applications, and workflow automation—into two fully independent digital workplaces was a highly complex and business-critical transformation, requiring precision, compliance, and assurance that every function would continue seamlessly for both new organizations.

Accurate Segmentation: Precisely identifying and separating users, mailboxes, Teams, SharePoint sites (including custom-developed apps), OneDrive’s, Power Apps, and Power Automate flows, ensuring nothing was left behind or duplicated.

Business App & Workflow Migration: Migrating custom SharePoint applications, Power Apps solutions, and Power Automate flows while preserving integrations, permissions, data connections, and operational reliability in each new environment.

Data Security and Compliance: Upholding strict regulatory, confidentiality, and security standards throughout the migration, with no exposure or loss of sensitive information.

Business Continuity: Guaranteeing uninterrupted access to email, files, business apps, and automated workflows for all users, with zero unplanned downtime and no productivity loss.

Permissions Remapping and Data Carving: Reallocating every item to the correct tenant, remapping complex permissions, and disentangling shared dependencies and legacy integrations.

Change Management and User Support: Delivering clear communication, targeted training, and responsive support to all users and IT teams to ensure readiness and confidence at every step.

Solution

Our Microsoft 365 Tenant Migration experts designed and executed an end-to-end, business-driven Microsoft 365 tenant split—meticulously planned to not only protect data and application integrity but also ensure every business process, custom app, and automated workflow functioned flawlessly in the new environments from day one.

Comprehensive Discovery & Mapping: Performed an exhaustive analysis of the source tenant, documenting users, mail, Teams, OneDrive’s, SharePoint sites (with custom apps), Power Apps, and Power Automate flows, while mapping dependencies, integrations, and compliance requirements for each new business.

Tailored Migration Roadmap: Developed a multi-phase migration plan including data carving, staged app/flow migrations, and permission remapping—testing each stage to validate app and workflow functionality before cutover.

Secure, Phased Execution: Executed migrations in carefully orchestrated stages—starting with pilot groups, active users, and non-critical content—then synchronizing cutovers and performing delta migrations to ensure all new and updated data, apps, and workflows were current at go-live.

Automated Tools & Custom App Migration: Leveraged BitTitan MigrationWiz, SharePoint migration utilities, and automation scripts for secure transfer of all data, business apps, and flows—preserving functionality, logic, permissions, and integrations in each tenant.

Validation, Communication & Support: Conducted thorough post-migration validation for data, app, and workflow integrity; delivered playbooks, dashboards, live training, and dedicated helpdesk support for a smooth, confident transition for every user.

Result

The Microsoft 365 tenant split delivered clean, compliant, and agile digital environments for both new businesses.

Both organizations achieved full operational independence with no downtime or loss of productivity, including uninterrupted access to all migrated SharePoint custom apps, Power Apps, and automated workflows.

All data, users, business applications, and permissions were securely allocated, with full compliance and audit trails.

Employees in both companies began working in their new Microsoft 365 environments from day one—collaborating, sharing files, using business apps, and accessing automated workflows with zero disruption.