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Microsoft 365 Consulting: The Complete Buyer's Guide

Plenty of companies pay for more Microsoft 365 than they use. Fewer can say who is keeping an eye on it.

By Centaris Team

Ask an IT manager how their Microsoft 365 tenant is doing, and the answer is usually some version of "fine." Mail works. Teams works. The renewal goes through every year without anyone opening the invoice line by line.

Look a little closer, and a different picture shows up:

  • A SharePoint site from a 2021 project that is still shared with the whole company

  • A guest account for a contractor who left two summers ago

  • A license tier that includes device management, which nobody ever configured

None of it breaks anything, which is exactly why it piles up.

This year gave plenty of companies a reason to look. Microsoft's 2026 pricing and packaging update took effect July 1:

  • Microsoft 365 E3 went from $36 to $39 per user per month.

  • Business Standard went from $12.50 to $14.

  • The frontline F3 plan went from $8 to $10.

If you have not renewed since then, the increase is waiting at your next renewal date.

What follows is a working guide to Microsoft 365 consulting for owners, executives, and IT leads: licensing, security, governance, migration, Teams, Copilot, and where secure AI fits. The last section covers how to pick a partner. Where one of these topics has its own full article, you will find a link.

$39
Microsoft 365 E3 per user per month after July 1, 2026, up from $36
52.2%
of intrusions starting with a valid account led to more credential theft
45%
of employees use AI regularly on work devices
15x
growth in active agents in Microsoft 365 in one year

Sources: Microsoft Licensing; Microsoft Digital Defense Report 2026; Verizon 2026 DBIR; Microsoft 2026 Work Trend Index

What Microsoft 365 Consulting Covers

At its broadest, Microsoft 365 consulting covers seven areas. A company might hire for one of them, say an Exchange migration that cannot wait, and find the others come up along the way.

AreaWhat the work involves
LicensingFitting plans to roles, removing unused seats, and planning renewals
SecurityIdentity, device, and email protection, often with tools already paid for
GovernanceWho can reach which data, how long it is kept, and how sharing works
MigrationMoving mail, files, and identities from servers, other platforms, or another tenant
Modern workTeams, Teams Phone, Teams Rooms, SharePoint, and frontline tools
Copilot and AIGetting data and permissions ready for Copilot, and governing AI use overall
Ongoing managementKeeping all of the above current once the project wraps up

The first conversation with a good consultant is about what you already own. It is common to find a tenant that has paid for conditional access or Intune for years without anyone switching them on. Turning those on can come before any new purchase.

Where Microsoft 365 Value Leaks

The leaks show up in the same handful of places in almost every tenant:

Licenses handed out by habit.

Everyone gets E3 because the first fifty people did. The receptionist carries features meant for engineers, and the engineers are missing a control they need.

Security left on factory settings.

Conditional access, device management, and email filtering come with many plans, but none of it protects anyone until it is configured.

Permissions that kept growing.

Sites shared with "Everyone except external users." Teams whose owner left the company. Guest accounts from finished projects. Each one widens what a single stolen password can reach.

Projects that stalled near the end.

Eleven mailboxes still on the old Exchange server. A phone system replaced everywhere except the Grand Rapids office. You keep paying for, patching, and backing up both.

AI nobody approved.

People got tired of waiting for an official tool and started pasting work into personal chatbot accounts.

All five can be fixed. The sections below explain where to start.

How Should You Approach Microsoft 365 Licensing?

Start with jobs, then pick plans. Write down what each group of employees does all day, note the features that work requires, and choose the cheapest plan that covers those features plus the security controls the business needs. Most of the overspending we hear about traces back to giving everyone the same plan.

The July 2026 update changed some of the comparisons. Microsoft's list prices, per user per month:

PlanBefore July 1, 2026After July 1, 2026
Microsoft 365 Business Standard$12.50$14.00
Microsoft 365 Business Premium$22.00$22.00 (no change)
Microsoft 365 E3$36.00$39.00
Microsoft 365 E5$57.00$60.00
Microsoft 365 F3 (frontline)$8.00$10.00

The detail most companies will miss is the gap between Business Standard and Business Premium. It used to be $9.50 per user. Now it is $8. Premium adds conditional access, Intune device management, and Defender for Business. A company that stayed on Standard to save money, then bought a separate endpoint tool to fill the hole, may now be paying more for less.

Before July 1, 2026
$9.50 gap
After July 1, 2026
$8.00 gap
Monthly per-user difference between Business Standard and Business Premium list prices. Source: Microsoft Licensing

Frontline plans rose the most in percentage terms. For manufacturers with large production workforces, that is real money.

Size matters as well. Microsoft's Business plans, Premium included, top out at 300 users. Past that, companies move to the enterprise plans or mix plans where the licensing terms allow.

An Illustrative Licensing Example

Picture a 250-person manufacturer outside Lansing with everyone on Microsoft 365 E3. About 160 people work in offices. The other 90 are on the production floor, checking schedules, Teams messages, and email on shared tablets between shifts.

  1. What they pay now. 250 users at $39 comes to $9,750 a month, or $117,000 a year.
  2. A role-based mix. Put the 160 office users on Business Premium at $22 ($3,520 a month) and the 90 floor workers on F3 at $10 ($900 a month). That totals $4,420 a month, or $53,040 a year.
  3. The gap. Roughly $64,000 a year, before counting any third-party security tools that Business Premium could replace.
Run your own headcount

Compares everyone on Microsoft 365 E3 at $39 with office users on Business Premium at $22 and frontline users on F3 at $10. List prices only.

Everyone on E3per year
Role-based mixper year
Annual differenceper year

Treat that as a thought exercise rather than a recommendation. Business Premium and E3 differ in places such as archiving and Windows licensing, and frontline plans carry usage terms that some roles will not fit. The point is that a renewal is a decision, and treating it as a formality gets expensive.

The best time for Microsoft licensing and optimization work is 60 to 90 days before renewal, when there is still room to change course.

Security Starts With Identity

Every sign-in to Microsoft 365 is a decision about who gets into mail, files, Teams, and admin settings. Attackers know this, which is why so many of them aim at accounts rather than servers.

Microsoft's 2026 Digital Defense Report makes three points that matter here:

Identity is the main control plane for defense, and that now includes applications and AI agents.

In 52.2 percent of intrusions that started with a valid account, attackers went on to steal more credentials. One compromised login rarely stays one compromised login.

Critical manufacturing is the sector hit hardest by ransomware.

The controls that change those odds come with plans most companies already have:

  • Phishing-resistant multifactor authentication for everyone, starting with administrators

  • Conditional access policies that weigh the device, the location, and how risky a sign-in looks

  • Legacy authentication shut off, since it lets attackers skip multifactor prompts entirely

  • Admin rights granted for a set window instead of being left on permanently

  • Scheduled reviews of guest accounts, vendor access, and third-party app permissions

Vendors deserve a hard look. Verizon's 2026 Data Breach Investigations Report found that only 23 percent of third-party organizations fully fixed missing or weak multifactor authentication on their cloud accounts. Your supplier's shortcut can become your incident.

To see where a tenant stands, Microsoft 365 Security Assessment: Are You Ready? walks through what a review covers and where Secure Score falls short. The thinking behind identity-first design is in Why Identity Is the New Perimeter.

Microsoft 365 is one piece of a larger security program that also includes monitoring, response, and recovery. That bigger picture lives in Cybersecurity Services in Michigan: The Complete Guide.

What Does Microsoft 365 Governance Involve?

Governance answers a set of plain questions. Who can create a Team? Who can open the engineering drawings? How long should old project files be kept? What happens when a contractor's work ends?

Left alone, a tenant grows the way a shared drive does: fast, with good intentions, and with nobody assigned to clean up.

Microsoft's 2026 report tells organizations to cut oversharing and tighten access now that AI tools can reach sensitive data so quickly. That advice holds whether Copilot is on the roadmap or not.

Here is a reasonable baseline to check a tenant against:

Regulated work adds another layer. A defense supplier in Macomb County handling controlled unclassified information may need a specific cloud environment and documented controls. A health system needs configurations that support HIPAA. Governance work puts the controls in place inside Microsoft 365. Mapping them to a framework and preparing for an auditor falls under compliance readiness, which has its own coverage.

Migration: Planning the Move Before Moving the Data

Copying mailboxes is the easy part of a Microsoft 365 migration. The hard parts are deciding what to bring, who should be able to open it on the other side, and what to switch off afterward.

Several triggers push companies to migrate. The biggest right now is aging email: Microsoft confirms that Exchange Server 2016 and 2019 reached end of support on October 14, 2025, so anyone still running either one is running unsupported email. Others include file servers in a closet that nobody wants to replace, acquisitions that leave the company with two tenants, and teams consolidating from Google Workspace.

A migration that holds up afterward generally follows this order:

Step 1
Take inventory.

Mailboxes, file shares, applications, and integrations, including the scanner workflow someone set up in 2017.

Step 2
Clean up first.

Archive or delete stale data and fix broken permissions before moving anything.

Step 3
Build the destination.

Set identity, security, and sharing defaults in the new environment before data arrives.

Step 4
Pilot.

Move one department, watch what breaks, and adjust.

Step 5
Migrate in waves.

Plan around production schedules and month-end close rather than the project calendar.

Step 6
Shut down the old system on a date you announce in advance.

Step six gets skipped more than any other. A half-retired system still needs patches, licenses, and backups, and it tends to hold data no one is watching.

What Does Modern Work Look Like in Microsoft 365?

In practice, modern work means one platform for meetings, calls, chat, and files, one identity to secure it, and tools that work as well on the plant floor as in the corner office. For most companies, Teams sits in the middle, with voice, meeting rooms, and SharePoint built around it.

Teams Phone

Moving calls onto Teams Phone puts them under the same sign-in and security policies as everything else in Microsoft 365, and it removes one more vendor contract. Why Microsoft Teams Phone Is Replacing Old Phone Systems covers connection options, keeping your numbers, and planning the switch.

Teams Rooms

Everyone has sat through a hybrid meeting where remote attendees hear the projector fan better than the speaker. Teams Rooms standardizes room hardware so people on the call can see and hear the room clearly.

Getting it right comes down to sizing each room for how it is used, placing cameras and microphones so remote attendees can see and hear everyone at the table, and choosing certified hardware with a room license that lets IT update and monitor every room from one console. Microsoft Teams Rooms: Build Better Hybrid Meetings covers room planning, hardware, and licensing in detail.

Frontline Workers

The production floor and the nursing unit have different needs than the accounting office:

  • Shared devices

  • Shift schedules

  • Procedures people can pull up quickly

  • Messaging that does not require a company laptop

Microsoft's frontline plans exist for this work, and after the July increase, the licensing choice deserves more care. In manufacturing environments and healthcare organizations, frontline tools also need to meet the same security bar as the front office.

Copilot Readiness

Copilot sees what your users can see. Microsoft's own documentation says Copilot only surfaces organizational data that a user has at least view permissions for.

That sounds reassuring until you remember the HR folder someone shared company-wide in 2019. Ask Copilot an innocent question about raises, and that folder can come back as a source.

So most Copilot preparation is governance work:

  1. Tighten access on sensitive sites
  2. Label confidential content
  3. Confirm what gets retained and for how long
  4. Choose a pilot group whose daily work will benefit

Licenses come last, once you know who will use Copilot and for what.

Try this before any rollout: sign in as an ordinary employee and search the tenant for words like "salary," "acquisition," or your biggest customer's name. Whatever comes back is close to what Copilot would show that person today.

Holding off on Copilot carries its own risk. Verizon's 2026 report found that 45 percent of employees were using AI regularly on work devices, up from 15 percent the year before, and 67 percent of that use went through personal accounts. Your people are already using AI. The open question is whether it happens somewhere you can govern.

Previous year
15%
2026
45%
Employees regularly using AI on work devices. 67 percent of that use went through personal accounts. Source: Verizon 2026 DBIR

What Microsoft Copilot Consulting Should Cover First goes deeper on readiness, permission cleanup, and phased rollouts.

How Does Secure AI Fit Into the Microsoft Ecosystem?

Think of Copilot as one tool in a toolbox that is filling up fast. A secure AI program covers all of it:

Copilot
Other approved AI platforms
The personal chatbot accounts employees already lean on
The agents teams are starting to build on Microsoft's platform

Microsoft 365 supplies much of the plumbing: identity, permissions, labels, and audit logs. Policy, training, and oversight sit on top.

The evidence for treating AI as something to govern keeps piling up. IBM's 2026 Cost of a Data Breach Report found that more than 20 percent of organizations reported a breach aimed at AI models or applications, most often through compromised APIs, applications, or plug-ins, or misconfigured cloud services.

Microsoft's 2026 Work Trend Index reports that active agents in Microsoft 365 grew 15-fold in a year and says IT should manage agents as identities with permissions and a lifecycle. In the same survey, only 26 percent of AI users said their leadership was clearly aligned on AI.

A secure AI program tends to rest on four pieces:

PieceWhat it covers
Acceptable use policyApproved tools, what data can go into them, and who signs off on new ones
Shadow AI controlSeeing unsanctioned AI use, and offering a governed alternative people will actually choose
Agent and identity governanceAn inventory of agents, their permissions, and regular review, as for any account
TrainingHands-on skills for employees, plus awareness of AI-written phishing and deepfakes

That last piece matters more than it looks. The Work Trend Index found that organizational factors such as culture, manager support, and talent practices explain more than twice as much of AI's reported impact as individual effort does. Buying a tool does not change how a company works.

Secure AI deployment covers the full program. Everything in the earlier sections of this guide is the ground it stands on.

How Do You Choose a Microsoft 365 Consulting Partner?

Start by deciding what you want the partner to own. Some firms only sell licenses. Some run a defined project and leave. Some manage the environment month after month. Most of the regret buyers describe comes from hiring one kind while expecting another.

Partner typeWhat you getWhere gaps tend to appear
License resellerSeats, billing, and basic supportLittle help with fit, security, or adoption
Project consultantA defined migration, deployment, or assessmentSettings drift once the project closes
Managed Microsoft partnerOngoing licensing, security, governance, and supportQuality depends on Microsoft and security depth

Plenty of companies combine them: a project to fix the foundation, then ongoing management, either fully managed or alongside internal staff through co-managed IT support.

6 Questions to Ask a Microsoft 365 Consulting Partner

Frequently Asked Questions

How much does Microsoft 365 consulting cost?

Cost depends on the size of the environment, the scope, and whether you want a one-time project or ongoing management. Ongoing work is commonly priced as a predictable monthly subscription. A role-based licensing review done before renewal can pay for a meaningful part of it.

Should we move from Business Standard to Business Premium?

If you have fewer than 300 users, run the numbers. The price gap narrowed in July 2026, and Premium adds conditional access, device management, and endpoint protection that may replace tools you already pay for separately. The answer depends on what security tooling you have today.

Do production floor employees need full Microsoft 365 licenses?

Usually not. Frontline plans are built for people who mostly use shared devices, schedules, Teams, and basic email. Microsoft attaches usage terms to those plans, so match the plan to how each group actually works.

Can some systems stay on-premises?

Yes, and many companies run hybrid setups for years because of plant-floor systems, specialized software, or data residency rules. Those systems still need supported versions, regular patching, and a tie-in to the same identity and security controls as the cloud tenant.

How often should a Microsoft 365 environment be reviewed?

Review licensing before every renewal and whenever headcount or roles shift. Review security and governance at least once a year, plus after an acquisition, a migration, or a new AI rollout.

Get More From the Microsoft 365 You Already Pay For

Most of the value in Microsoft 365 comes from doing things in the right order: identity before licensing changes, governance before Copilot, and a plan before a migration. That order is far easier to follow with someone who can see the whole tenant at once.

Centaris works with organizations across Michigan and the Great Lakes region as an IT and cybersecurity partner, with deep Microsoft experience across licensing, Entra ID, Defender, Intune, SharePoint, Teams Phone, Copilot, and data governance.

Every engagement starts with an assessment of what you own, how it is set up, and who can reach what. The work that follows is delivered fully managed or co-managed on a predictable monthly subscription, and AI adoption is handled alongside Microsoft and selected partners.

To see what your tenant could be doing for the business, schedule a no-obligation assessment.

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