Office 365 to Office 365 Migration Tenant to Tenant

SkyTerra: Microsoft 365 Tenant to Tenant Migration

Modernize and consolidate with confidence. SkyTerra plans and executes Microsoft 365 tenant to tenant migrations that protect identity, data, and brand integrity. We design coexistence where it is needed, cutover where it makes sense, and a communication plan that keeps people productive through every step. Our approach aligns with Microsoft best practices for Exchange Online, SharePoint Online, OneDrive for Business, Microsoft Teams, and Microsoft Entra ID. We balance technical precision with user experience, so your organization maintains trust and continuity while you change the foundation underneath. You receive a tested plan, clear roles and timelines, and a clean handoff your IT team can run with confidence.

Why Organizations Choose SkyTerra for Tenant Consolidation

• Mergers, acquisitions, and divestitures that demand domain, identity, and data realignment • Rebrands that require primary SMTP and User Principal Name changes with a consistent user experience • Consolidation to simplify licensing and administration while improving security and compliance • Desire for a structured, low risk plan that protects scheduling, mail flow, and collaboration during the move

SkyTerra Three Thread Delivery Model

1. Technical Execution Scope we cover: Identities and access: Microsoft Entra ID, Conditional Access, Multi Factor Authentication, device trust, and role design Messaging: Exchange Online mailboxes, archives, distribution lists, shared and resource mailboxes, SMTP addresses and X.500 Collaboration: Microsoft Teams, SharePoint Online, OneDrive for Business, Planner, Viva, Stream on SharePoint Security and compliance: Microsoft Purview labeling, Data Loss Prevention, audit, eDiscovery, and retention Apps and integrations: Single Sign On, line of business applications, mobile app profiles, Microsoft Intune

Framework based delivery phases: Discovery and Readiness: Inventory source and target tenants, confirm licensing and data volumes, map identities and namespaces, assess governance, security, and compliance requirements. Confirm native and tool based migration options and define success criteria. Coexistence and Design: Choose cutover or phased strategy, define domain and addressing plan, enable calendar free or busy sharing with Exchange Online organization relationships. Plan optional address rewrite and mail routing. Configure cross tenant collaboration and synchronization where appropriate. Build and Pre migration: Baseline the target tenant, configure identity, security, and governance. Prepare license assignment, establish migration endpoints and throttling strategy, and create pilot batches. Migrate Workloads: Mailboxes: use cross tenant mailbox migration with Exchange Online. OneDrive: use cross tenant OneDrive migration and validate permissions and sharing links. SharePoint sites: use cross tenant site migration where available or approved tooling. Teams: migrate teams, channels, files, membership, and where applicable chat history with proven methods. Validation, Cutover, and Domain Transfer: Execute a controlled window to detach domains from the source, attach to the target, update User Principal Names and primary SMTP, validate mail flow, Teams access, and links. Maintain calendar sharing during phased moves to reduce friction. Decommission and Handoff: Retire coexistence, finalize documentation, complete tenant health checks, and hand off runbooks and monitoring.

2. IT Team Enablement • Design reviews and dry runs with clear roles and responsibilities • Role specific training for identity, mail routing, collaboration, and security teams • Runbooks for identity changes, domain transition, and license mapping • Tenant health dashboards, daily validation checklists, and a practical rollback plan • Documentation packaged for handoff to operations

3. End User Adoption • Branded communications with what is changing and when, targeted by audience and department • Day one instructions, FAQ, and known issues to reduce help desk volume • Scheduling guidance that preserves calendar sharing during coexistence • Short guides for Outlook, Teams, SharePoint, OneDrive, and mobile devices • Hypercare support windows with clear escalation paths

What You Can Expect • A tested migration plan that protects identity, security, and compliance while minimizing user disruption • Standards based moves for Exchange Online, OneDrive for Business, and SharePoint Online • A clear domain and addressing strategy, including options for cross tenant synchronization, calendar sharing, and phased routing during longer projects • Communication templates, change playbooks, and training that keep business moving • Detailed documentation and a clean handoff to your IT team SkyTerra delivers a structured, low drama path from your current state to a clean, consolidated Microsoft 365 tenant that your team can run with confidence.