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The Microsoft 365 and Azure Cost Optimisation Handbook
Find avoidable Microsoft 365 and Azure spend, agree changes with the right owners, and confirm the result before reporting savings.
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Microsoft 365 and Azure cost optimisationSeats nobody uses. Changes nobody noticed. AI nobody approved.
EtherInsights finds all three across your Microsoft estate, gives each one an owner, and keeps the proof. From £0.79 a user a month.
One published price for the whole platform, charged per licensed user. Cancel inside the 14-day trial and pay nothing.
14-day free trial on your own tenantRead-only, nothing to installCancel any time in the trial
Before your next renewal
£6,439 a year
in seats nobody uses, to cut before the renewal.
Seats nobody uses18 unused licences, £536.60 a month£6,439 a year
Changes nobody noticedWho, when, and what it was before7 changes
AI nobody approvedAI items, note-takers included5 to decide
Sample data.
Read-only by defaultNothing to install
Windows 365 partnerListed by Microsoft
ISO 27001, 9001 and 42001Security, quality and AI
Microsoft MarketplaceBuy through Microsoft
Seats, settings and AI, each with an owner.
EtherInsights finds the licences nobody uses, the changes nobody noticed and the AI nobody approved, at one published price, and keeps the proof of what was done about each.
Your Microsoft estate
- Microsoft 365
Azure
Windows 365
Entra ID- Intune
Exchange Online
Teams
SharePoint and OneDrive
Defender
Purview- Microsoft 365 Copilot
Read-only by default
EtherInsights
About seven minutes to connect. Nothing to install.
- Seats nobody usesPriced at your plan rate, flagged before renewal locks them in
- Changes nobody noticedWho changed it, when, and what it was, so you can put it back
- AI nobody approvedA decision, an owner and a date for each
Seats nobody uses
More licences than people? Find them before your renewal locks them in for another year.
- Every licence priced at its own plan rate. Add your renewal dates and EtherInsights warns you 30 days ahead, with the seats to cut
- Azure resources, and SharePoint and OneDrive storage against quota
- Cloud PC capacity, sized from real use
Changes nobody noticed
See who changed a setting, when, and what it was before, then put back just that setting.
- Entra ID, Intune, Exchange Online protection, Teams, SharePoint and OneDrive, Windows 365, Defender, Purview and Microsoft 365 admin settings
- Up to 365 days of configuration history, with who made each change recorded from the day monitoring starts
- History in a vault you own, kept if you leave
AI nobody approved
Who invited the AI note-taker? Find the AI apps your users let in, AI meeting note-takers included.
- Every AI app users consented to, plus AI websites by domain (preview)
- Copilot readiness and usage, with the seats nobody uses
- A decision, an owner and a date for each, in a board report. See AI governance
9Microsoft services watched
40+configuration areas
14 daysfree trial on your own tenant
Up to 365days of configuration history
Your Microsoft tenant
ReadConfiguration, licensing and usage
ExcludedMail, files and messages
Read-only by defaultChanges only when you opt in, under your admin's delegated sign-in
Mail, files and messages are excluded.EtherInsights reads configuration, licensing and usage. Changes are opt-in and run under your own admin's delegated sign-in.
Nothing fails silently.Every leaver closed, checked and filed, with a record of each step. Every check says what it couldn't read: anything unread shows as "Not read", never as zero.
Find the waste before your renewal locks it in.
Leavers keep their seats, test machines keep running and Cloud PCs stay the size they were built at. Find them before your renewal locks them in for another year.
At renewal
On annual plans, you have 7 days after a purchase or renewal to cut seats. After that, the count is locked for the rest of the term.
1 July 2026
Microsoft raised list prices on select Microsoft 365 and Office 365 suites, E3 and E5 among them, so every seat you renew unused on those plans costs more than it did.
This week
Add your renewal dates and EtherInsights warns you 30 days ahead, with the seats to cut before the renewal. A 14-day trial gives you the number, the owners and the plan before that date arrives.
It pays for itself at one idle seat in 22.
Pick a Microsoft seat or type what you pay. EtherInsights is charged per licensed user, so once a dormant account holds no licence, it no longer counts.
Currency
The seat you pay for
£0.79per licensed user per month. A licensed user is an account that is switched on and holds any Microsoft licence, such as E3. Whole platform, no add-ons, no feature tiers.
1 in 22licensed users
One idle seat in every 22 licensed users, cut at renewal, pays for EtherInsights.
£16.90 a seat ÷ £0.79 per licensed user = 21.4, rounded up to 22. Seat price: Microsoft 365 Business Premium, Microsoft list price.
14-day free trial on your own tenant. Read-only by default.
What to cut, who owns it, what it is worth.
Licences, Azure and Cloud PCs join into one annual savings figure. Every finding carries an owner, an action and a value, so it can be approved line by line.
Licences
Seats paid for and unused, and plans bigger than the person needs, each priced per month.
Azure
Idle and oversized virtual machines by subscription and service, priced the same way.
A savings pipeline
Every saving has an owner, a monthly value and a date to beat: your renewal. Each closes with before and after figures.
Your tenant, your number, in 14 days.
Read-only by default, nothing to install. Any change, such as restoring one setting, is opt-in, previewed and runs under your own admin's delegated sign-in.
- Minutes
Connect
Sign in with Microsoft and approve read-only access. Nothing to install and no agent on any device.
- Within hours
See the number
Your first annual waste figure, plus who changed what in the tenant since your baseline.
- Week one
Assign owners
Each finding goes to the person who can act on it, with its value and next step attached.
- Every month
Prove it
A savings report tracks what was cut against the number, ready to forward to finance.
Inside your 14-day trial14-day trial on your own tenant. Cancel inside the trial and pay nothing.The trial is the real product on your real tenant.
Idle and oversized Cloud PCs, in the same number.
Right-sizing uses real CPU and RAM peaks, and each Cloud PC user group stays compared with the Azure Virtual Desktop or VDI estate it replaced, so you can show the move paid off. Included, nothing to deploy.
Right-sizeOversized Cloud PCs flagged with the monthly saving
ReclaimIdle Cloud PCs and their licences, each with an owner
CompareCost per user group against the AVD or VDI baseline
Changes, security and leavers, on the real screens.
Included in the same price, with no add-ons. Pick an area to see the screen.
Watch the platform overview.
A short walkthrough of EtherInsights covering cost, Windows 365, tenant posture, device reporting, security, Copilot readiness, and user lifecycle.
Watch with chapters and transcript
Read the transcript
- Four Microsoft services, several admin centres, and one question: where can we put the budget to better use?
- EtherInsights brings Microsoft 365, Azure, Windows 365 and Intune into one view.
- Home shows what you spend, what you could save, and what to do first.
- See which licences go unused.
- Find idle cloud resources and put a monthly cost against the opportunities worth reviewing.
- Check security settings against recognised baselines, investigate configuration changes and share the findings in a report your team can act on.
- Then see the AI nobody approved, on the AI radar.
- It's read-only by default, with nothing to install. An administrator approves read-only access during setup.
- EtherInsights is available on Microsoft Marketplace, through channel partners, or direct from EfficientEther.
- Try EtherInsights free for fourteen days on your own tenant, and see what you find.
Take it to the people who decide.
Free documents for this decision, written to be forwarded.
One number, four people who sign it off.
The IT lead brings it in. Each approver gets the line they care about and the evidence behind it.
IT lead
Walk into the budget meeting with the number and the plan.Every finding with an owner, an action and a value.
Finance
One figure for the whole Microsoft bill, and a report you can check line by line.In pounds, dollars or euros, tracked month by month.
MSP principal
Show every client their waste number. Bill the fix.Every customer tenant in one partner portal.See the partner programme
Security lead
Every app with a key to your tenant, listed, ours included. Ours is read-only by default.App registrations, enterprise apps, their permissions and who consented. Mail, files and messages are excluded. Changes are opt-in and run under your admin's delegated sign-in.
The questions before anyone connects a tenant.
Free reports, safety, your MSP and the card.
The data is free. The answer is not. EtherInsights joins licences, Azure and Cloud PCs into one figure, gives each finding an owner and tracks the saving. Without it, that is a week of spreadsheets.
Four things you can check on your own tenant.
Seats nobody uses. Changes nobody noticed. AI nobody approved. EtherInsights finds all three across your Microsoft estate, gives each one an owner, and keeps the proof. From £0.79 a user a month.
Seats, changes and AI, one price.
Seats nobody uses, changes nobody noticed and AI nobody approved, found in one platform. The waste becomes one annual figure your finance lead can read, with a date to beat: your renewal.
£0.79 per licensed user per month, whole platform
Try it on your own tenant today.
Your tenant, your number, 14 days. Cancel inside the trial and pay nothing.
14-day free trial on your own tenant. Cancel inside the trial.
An owner on every finding.
Each finding says what to cut, who owns it and what it is worth. The savings report tracks what was actually cut.
A savings report with an owner, an action and a value on every line
Nothing fails silently.
Every leaver closed, checked and filed. Every check says what it couldn't read: anything unread shows as "Not read", never as zero. Read-only by default, and changes are opt-in, run under your own admin's delegated sign-in.
ISO 27001, ISO 9001 and ISO/IEC 42001
A UK software company for the Microsoft estate. Listed by Microsoft as a Windows 365 partner, on Microsoft Marketplace, and certified to ISO 27001, ISO 9001 and ISO/IEC 42001.
About EfficientEtherSee it on your own tenant this week.
Start on your own, see it with a practitioner, or ask the question procurement will ask. Every path has a person behind it and a published price.
- TodayConnect read-only in about seven minutes. Nothing in your tenant changes.
- First sessionFindings appear as the scan runs, each with a monthly figure and an owner.
- Day 14Keep the plan or cancel.
See what your Microsoft estate is wasting.
Connect your own tenant with read-only consent. Licence, Azure and Cloud PC findings appear in the first session.
- 14-day free trial on your own tenant
- Read-only by default, actions opt-in
- ISO 27001, 9001 and 42001
Next: sign in with Microsoft and approve read-only access. About seven minutes to connect.
Prefer to see it first? Watch the 90 second tour