Manual licence reviews don’t scale. Continuous automation finds the waste, fixes the gaps, and keeps your M365 costs under control.
March 2026 | 6 min read
At a Glance
Microsoft 365 licensing is one of the largest and most complex line items in any enterprise technology budget. Over 40 standalone plans, multiple suite tiers, security and compliance add-ons, and a price increase cycle that keeps finance teams permanently on edge. For most IT leaders, managing it effectively with manual methods means spreadsheets, quarterly reviews, and educated guesses. making Microsoft 365 licence rightsizing difficult to achieve consistently at scale.
The result is predictable: licences assigned to users who have left, premium tiers granted to users who only need the basics, and add-ons that duplicate features already included in the suite. The waste is real, the security exposure is real, and neither gets fixed reliably without continuous licence management automation.
1. The Real Cost of Getting Microsoft 365 Licences Wrong
Microsoft 365 licensing is complicated. There are over 40 standalone plans, bundled suites at multiple price tiers, add-ons for security, compliance, voice, and analytics, and a price increase cycle that keeps finance teams permanently on edge. For most IT leaders, managing this effectively with manual methods means spreadsheets, quarterly reviews, and educated guesses.
The problem is not that IT teams do not care. It is that manual processes cannot keep up with the pace of change. Staff join and leave. Projects end. Roles shift. A user assigned an E5 licence eighteen months ago may have moved to a different role that only needs an E1. Nobody noticed because the process for catching that change relies on a human being to investigate, and humans have other priorities.
Microsoft charges whether the licence is used or not. That is the model. And the average Microsoft 365 environment contains far more over-provisioned and inactive licences than IT teams realise. Flexera’s 2025 State of the Technology Spend Report found that $8.3 billion is wasted annually on unused SaaS licences globally. Microsoft 365 is typically the single largest SaaS line item in any enterprise budget.
Microsoft 365 licence rightsizing means assigning the correct licence to each user based on actual usage. It sounds obvious. Without a Microsoft 365 licence automation, it rarely happens consistently.
2. What Licence Automation Actually Means in Practice
When TeamsFox talks about automation, it does not mean scripts that run once a quarter. It means continuous, tenant-wide monitoring that surfaces actionable data in real time.
TeamsFox scans every user account in the tenant and maps licence assignments against actual usage signals. Which apps is the user opening? Which features are they using? When did they last log in? The platform assigns a utilisation score to each licence, flags under-used assignments, and groups them by severity and financial impact.
That data drives a recommendation engine. Not vague observations. Specific, costed recommendations: “14 users in the Sales team are assigned E5 licences but have not used the advanced compliance features in 180 days. Downgrading to E3 saves approximately €4,200 per year.” This is what makes automated licence management actionable rather than just informative.
“Microsoft 365 licence costs compound in the background. Every month you delay rightsizing, you are paying for access that nobody is using. Automation is the only way to stay ahead of it at scale.”
The automation layer does not just identify waste. It tracks licence pool capacity, flags when departments are approaching their allocation limits, and forecasts spend based on headcount trends. Finance teams get a clear picture. IT teams get fewer emergency escalations. Everyone makes better decisions.
3. Catching Licence Drift Between Reviews
Quarterly licence reviews have a structural flaw: they only capture the state of the tenant at a single point in time. Between reviews, licences accumulate on accounts that have been reassigned, suspended, or forgotten.
TeamsFox monitors the tenant continuously. When a user account is disabled in Entra ID, the platform flags the associated licences for reallocation within hours, not weeks. When a new user is provisioned, TeamsFox checks whether the proposed licence assignment is consistent with their role and compares it against similar users in the organisation.
This matters especially for dynamic organisations, MSPs managing multiple tenants, and any business going through restructuring or acquisition. The licence environment never stops changing. Continuous monitoring means the data you act on is current. For teams that also want visibility across permissions and activity signals in real time, real-time governance analytics extend that picture across the full tenant.
Security Risk: Inactive accounts with active licences are not just a cost problem. They are a security risk. An account that remains active after an employee leaves is an open door. IBM’s 2025 Cost of a Data Breach Report puts the average time to detect an identity-driven breach at 246 days. Attackers actively look for stale credentials in M365 environments. Automated lifecycle management closes that door automatically.
4. Microsoft 365 Licence Rightsizing: From Assignment to Optimisation
Microsoft 365 licence rightsizing is not about cutting to the minimum. It is about matching each user to the appropriate licence tier for their actual role and usage patterns.
TeamsFox identifies three distinct categories of licence inefficiency. The first is over-provisioning: users assigned premium tiers when their usage signals indicate a lower tier would cover their needs. The second is redundancy: users carrying both a suite licence and standalone add-ons that duplicate features already included in the suite. The third is abandonment: licences assigned to accounts that are no longer active, often former employees or project accounts that were never deprovisioned.
Each category has a different remediation path. Over-provisioning requires a downgrade recommendation with usage data to justify it. Redundancy requires identifying the overlap and removing the add-on. Abandonment requires licence recovery and account lifecycle review — the same discipline that underpins a strong Microsoft 365 governance posture.
TeamsFox surfaces all three, with financial impact figures, so IT and finance teams can prioritise actions based on the return they deliver. Customers consistently report that the first rightsizing cycle delivers the largest gains, with 20–30% cost reductions common within the first 90 days of deployment.
5. The Business Case for Automated Microsoft 365 Licence Management
The ROI argument for automating licence management operates on two axes: cost reduction and time savings.
On cost: TeamsFox customers achieve an average 30% reduction in Microsoft 365 licence spend. For an organisation paying €500,000 per year in Microsoft licences, that is €150,000 recovered annually. The savings compound over time because continuous Microsoft 365 licence automation prevents waste from building up again.
On time: IT teams report a 60% reduction in time spent on licence administration. Manual processes that previously required a dedicated analyst running quarterly audits are replaced by automated reports and actionable dashboards. That time goes back to higher-value work: governance, security, and Copilot readiness.
There is also a compliance argument. Microsoft 365 licensing agreements require organisations to have accurate records of licence assignments. An automated audit trail satisfies this requirement and reduces the risk of non-compliance findings during Microsoft True-Up reviews or third-party audits. The governance visibility this creates connects directly to what auditors ask for under ISO 27001 and NIS2 access control requirements.
6. How TeamsFox Differs from Other Licence Management Tools
There is no shortage of tools that claim to help with Microsoft 365 licence management. The difference with TeamsFox is the depth of data and the specificity of recommendations.
Most alternatives surface signals at the subscription level. They tell you that you have unused licences. TeamsFox surfaces evidence at the user and feature level. It tells you exactly which user, which features they are not using, and what the cost implication is of a specific change. That distinction matters when you are justifying a downgrade decision to a line manager or presenting cost savings to a CFO.
TeamsFox also operates tenant-wide, not just at the licence tier. The platform crosses licence data with file usage, Teams activity, Entra sign-in logs, and SharePoint access patterns to build a complete picture of how M365 is actually being used across the organisation. That is what allows it to deliver the accuracy of recommendations that drives 30% cost reductions rather than marginal improvements.
“Scripts fix moments. We fix systems. One-off cleanup scripts solve the problem this quarter. TeamsFox prevents it from recurring.”
The platform is available for immediate deployment. No lengthy implementation project, no professional services dependency. Most customers are seeing data within hours of connection.
Conclusion
Microsoft 365 licensing costs will keep rising. That is not speculation; Microsoft has confirmed further price increases in the pipeline. The only lever organisations control is how well they manage what they already pay for.
Manual reviews are a floor, not a ceiling. They catch the obvious waste when someone remembers to look. Automation catches everything, continuously, and makes the business case for every change it recommends.
The organisations that treat licence management as a continuous process rather than a periodic audit will consistently outperform those that do not. The savings fund other priorities. The freed admin time goes to governance, security, and innovation. The audit trail satisfies auditors and procurement teams.
That is what Microsoft 365 licence rightsizing with automation actually delivers. Not a one-off project, but a permanent improvement in how your Microsoft 365 investment performs.
About TeamsFox
TeamsFox GmbH is a Microsoft 365 governance and optimisation platform trusted in over 20 countries across Europe, MENA, and Asia. The platform delivers continuous licence management, storage optimisation, governance visibility, and Copilot readiness capabilities to IT teams managing M365 at scale. www.teamsfox.com