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MICROSOFT 365 CONSULTING · FOUNDATION

Microsoft 365 Implementation and Managed Services, from tenant design to 24x7 support

One partner from licensing and tenant design through Exchange Online, email migration and day-two operations, so your Microsoft 365 estate is built correctly once and stays healthy after go-live.

Talk to a Microsoft 365 expert
Explore managed operations capabilities & delivery details
50Certified Microsoft 365 consultants
1,000+Identities per managed client estate
15 minP1 response under managed services
24x7Managed support and monitoring
MICROSOFT 365. ONE TEAM.
Decisions first, then configuration.

Tenant, identity, mail flow and security baselines are designed and documented before a single user moves.

In short

What is Implementation and Managed Services?

Microsoft 365 implementation and managed services cover designing and configuring a Microsoft 365 tenant (Entra ID identity, Exchange Online, Teams, SharePoint, OneDrive, Intune and security baselines), migrating users and mailboxes into it, and then operating it under a service-level agreement. TechTiera delivers all three stages, plus Microsoft licensing, as a single accountable engagement.

Reviewed by TechTiera's Microsoft 365 Center of Excellence

At a glance

  • Workloads: Entra ID, Exchange Online, Teams, SharePoint, OneDrive, Intune, Defender, Purview
  • Typical timeline: Tenant foundation in 4–8 weeks; migrations sized by mailbox and data volume
  • Engagement models: Fixed-scope project, phased program, co-managed or fully managed service
  • Support: 24x7 monitoring, L1–L3 support, monthly service reviews
  • Licensing: Microsoft 365 E3/E5, Business Premium, Copilot and add-ons, advised on, procured and right-sized by TechTiera

Implementation & Managed Services

What does a Microsoft 365 implementation include?

A sound implementation is mostly decisions made before anyone is migrated. We treat the tenant as production infrastructure from day one and document every design choice so your team, auditors and future partners can follow it.

LayerWhat we design and buildWhy it matters
Tenant and domainsTenant naming, verified domains, data residency, Multi-Geo where needed, admin role model with Privileged Identity ManagementSome choices (tenant name, initial domain, geography) are hard or impossible to change later
IdentityEntra Connect / Cloud Sync, password hash sync or pass-through authentication, federation retirement, Conditional Access, phishing-resistant MFAEvery Microsoft 365 service depends on Entra ID; weak identity design is the most common root cause of incidents
MessagingExchange Online, hybrid with Exchange Server where required, mail flow, connectors, SPF/DKIM/DMARC, Defender for Office 365 policiesMail flow and authentication errors are what users notice first
CollaborationTeams policies and provisioning, SharePoint and OneDrive sharing settings, external access, information architectureDefault sharing settings are the main source of Copilot oversharing risk
EndpointsIntune, Windows Autopilot, compliance policies, app deployment, co-management with Configuration ManagerDevice compliance feeds Conditional Access decisions
Security and complianceSecure Score baseline, Defender XDR, Purview sensitivity labels, retention, DLP, auditRegulated clients need evidence, not just configuration

Implementation & Managed Services

Exchange Online design: the details that decide success

Exchange is where most migration programs win or lose user confidence. Our architects plan for the details generic project plans skip:

  • Hybrid or cut-over. We size the choice to mailbox count, coexistence length and on-premises dependencies. With Exchange Server 2016 and 2019 now out of support, we plan the path to Exchange Online or Exchange Server Subscription Edition only where a management server is still required.
  • Free/busy and coexistence. Organization relationships, OAuth and calendar sharing tested before the first batch moves.
  • Mail flow. Centralized vs. direct routing, third-party gateways, inbound connectors and MX cut-over sequencing with rollback.
  • Legacy protocols and applications. Inventory of apps still using basic authentication, SMTP relay or Exchange Web Services (EWS), with remediation to Microsoft Graph or modern authentication before they break.
  • Public folders, shared and resource mailboxes, archives and PSTs. Each has its own migration path and permission model; we treat them as separate workstreams.
  • Email authentication. SPF, DKIM and DMARC moved toward enforcement to meet bulk-sender requirements from major mailbox providers.

Implementation & Managed Services

What do Microsoft 365 managed services cover?

Go-live is the start of the expensive part. Microsoft ships changes to Microsoft 365 every week, and an unmanaged tenant drifts from its secure baseline within months. Our managed service keeps it aligned.

Service areaIncluded activities
MonitoringService health, mail flow, sync health, license consumption, Secure Score drift, sign-in anomalies
SupportL1 service desk through L3 engineering for Exchange, Teams, SharePoint, OneDrive, Entra ID and Intune; Microsoft escalation management
Change and releaseMessage Center review, impact analysis of upcoming Microsoft changes, controlled rollout of new features
AdministrationJoiner/mover/leaver processing, mailbox and group management, policy updates, license reassignment
OptimizationUnused license reclamation, right-sizing E3/E5/add-ons, adoption reporting
GovernanceQuarterly access reviews, guest clean-up, retention and label health checks

Service-level tiers

Our standard service levels follow leading industry practice (ITIL 4 priority model). They are confirmed in each contract and measured monthly.

PriorityDefinitionResponseRestore targetCoverage
P1 CriticalService down or security incident affecting many users or a critical business function15 minutes4 hours24x7
P2 HighMajor degradation, or a critical function impaired for a group of users30 minutes8 hours24x7
P3 MediumSingle user or non-critical feature affected; workaround available4 business hours2 business daysBusiness hours
P4 Low / service requestQuestions, standard changes and requests (new user, mailbox, access)1 business day3–5 business daysBusiness hours

Monthly service reports cover SLA attainment, ticket trends, first-contact resolution, Secure Score, license usage and recommended improvements.

How we deliver

How does a TechTiera engagement run?

Each phase ends with a deliverable you can review before the next one starts.

  1. Assess

    Licensing, identity, mail and endpoint inventory; readiness report and risks.

  2. Design

    Tenant blueprint, identity and security baselines, migration strategy and cut-over plan.

  3. Build

    Configure tenant, Conditional Access, Exchange Online, Teams, Intune and Purview in a staged order.

  4. Pilot

    IT and early-adopter waves validate mail flow, devices and support processes.

  5. Migrate

    Batched user, mailbox and data moves with daily reconciliation and rollback paths.

  6. Operate

    Hand-over to managed service with runbooks, SLAs and monthly service reviews.

Accelerators and tools

Accelerators and tools TechTiera brings

Microsoft-native tooling, proven third-party products where they add value, and TechTiera's own accelerators.

  • Microsoft FastTrack coordination
  • Microsoft 365 Assessment and Secure Score
  • Exchange hybrid configuration
  • TechTiera tenant baseline templates (Conditional Access, Intune, Purview)
  • Quest, BitTitan and native migration tooling
  • TechTiera PowerShell scripting library for tenant configuration, bulk administration and reporting
  • Automated Entra ID provisioning for joiner-mover-leaver (JML) workflows driven by HR processes
Discuss your environment
50Certified Microsoft 365 consultants
15 minP1 response under managed services
6Global delivery regions
24x7Managed support and monitoring

Client work

Microsoft 365 programs we have delivered

Two full-lifecycle programs: each built from an empty tenant to 1,000 identities, then run by TechTiera under long-term managed services agreements.

Biotechnology · United States

Microsoft 365 from scratch for a large US-based biotech company

TechTiera implemented Microsoft 365 from the ground up and scaled the environment to 1,000 identities, delivering full-service consulting across identity, end-user computing, Exchange Online, SharePoint, OneDrive, Entra ID, Purview, Power Automate, Power BI and integrations with other enterprise systems. TechTiera continues to provide enhancements and day-to-day support under a long-term managed services agreement.

  • Entra ID
  • EUC
  • Exchange Online
  • SharePoint + OneDrive
  • Purview
  • Power Automate
  • Power BI
  • Integrations
  • Managed services
Reinsurance · Bermuda

Microsoft 365 from scratch for a Bermuda-based reinsurer

TechTiera implemented Microsoft 365 from scratch and scaled it to 1,000 identities, providing full-service consulting across identity, end-user computing, migrations, Exchange Online, SharePoint, OneDrive, Entra ID, Purview, Power Automate, Power BI and integrations with other systems, aligned to the expectations of a BMA-regulated insurer. TechTiera delivers ongoing enhancements and day-to-day support under a long-term managed services agreement.

  • Entra ID
  • EUC
  • Migrations
  • Exchange Online
  • SharePoint + OneDrive
  • Purview
  • Power Automate
  • Power BI
  • Managed services

Ways to engage

From licensing to managed services, one accountable team

Start wherever you are. Each stage can be bought on its own, and most clients combine several under one team.

Licensing

For teams renewing or changing Microsoft agreements

  • E3, E5, Business Premium and Copilot advice
  • Procurement through TechTiera
  • Right-sizing after deployment
Discuss licensing →

Implementation

For new tenants, migrations and major rollouts

  • Assessment and design
  • Build, migrate and adopt
  • Documented baselines and runbooks
Discuss implementation →

Enhancements and complex solutions

For teams that need more than configuration

  • Custom development and integrations
  • Automation and AI agents
  • Power BI and Fabric solutions
Discuss enhancements →

Managed services

For organizations that want Microsoft 365 run for them

  • 24x7 monitoring and L1–L3 support
  • Industry-standard SLAs
  • Monthly service reviews
Discuss managed →

Why TechTiera

Why choose TechTiera for Microsoft 365?

50 certified Microsoft 365 consultants

A dedicated Microsoft 365 practice inside TechTiera's Center of Excellence, with architects across identity, endpoints, collaboration, Power Platform, data, Azure and security.

Enterprise content management heritage

Decades of ECM delivery mean records, retention and regulated document control are designed in, not bolted on.

Our own accelerators and tools

DocOrbit migration, tenant baseline templates, PowerShell automation, JML provisioning, governance and security assessment toolkits.

Full lifecycle, one team

The team that designs your environment stays accountable for running it, from licensing to managed services.

Azure, DevOps and cloud migration depth

Identity, security and data span Microsoft 365 and Azure, so we design and operate both together.

Proven in regulated industries

Full-service Microsoft 365 programs for a US biotech company and a Bermuda reinsurer, each scaled to 1,000 identities.

Global service desks, follow-the-sun

USA, India, Europe, APAC (Malaysia, the Philippines, Indonesia), the UAE and Australia.

SLA-based support with 24x7 coverage

P1 response in 15 minutes, monthly service reviews and clear escalation paths.

Questions, answered

Implementation & Managed Services FAQs

How long does a Microsoft 365 implementation take?

A tenant foundation (identity, security baselines, Exchange Online and Teams configuration) typically takes 4 to 8 weeks. User and mailbox migration then runs in waves sized to your volume, so a 2,000-user organization often completes in 2 to 4 months end to end.

Do we need Exchange hybrid to move to Exchange Online?

Not always. Organizations under a few hundred mailboxes with short coexistence can use a cut-over or staged migration. Larger estates, those needing free/busy coexistence, or those keeping on-premises applications that relay mail usually benefit from hybrid during the transition.

Can TechTiera provide Microsoft 365 licenses as well as services?

Yes. TechTiera can advise on and supply Microsoft 365 licensing, including E3, E5, Business Premium, Copilot and security add-ons, and then right-size it after deployment so you stop paying for unused seats.

What happens after go-live?

Your tenant moves into TechTiera managed services with monitoring, L1 to L3 support, change management for Microsoft's weekly updates, and monthly reports on health, security posture and license use.

Can you take over a tenant another partner built?

Yes. We start with a tenant health assessment covering identity, Conditional Access, mail flow, sharing settings and Secure Score, fix high-risk gaps first, then transition support with documented runbooks.

Do you support co-managed models with our internal IT team?

Yes. Many clients keep L1 internally and use TechTiera for L2/L3 engineering, Microsoft escalations and change management. Responsibilities are defined in a RACI agreed during onboarding.

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