Introduction: License costs as a blind spot in IT
Microsoft 365 is a central platform for many companies – flexible, powerful and scalable. But with flexibility comes challenges: License models are complex, user structures change frequently and responsibilities are often not clearly defined.
The result: many companies pay year after year for licenses that are not used or only partially used. Unnecessary expenditure can be significantly reduced through targeted measures with a Microsoft 365 license clean-up – and without any negative impact on security or productivity.
What does Microsoft 365 license consolidation mean?
A license clean-up is the structured process for checking and optimizing existing Microsoft 365 licenses. The aim is to identify over-licensing, duplicate licenses and inactive users – and then to remove or convert them.
This is not about saving money at any price, but about licensing in line with requirements. Companies benefit not only financially, but also through an improved overview, IT security and audit capability.
Typical causes of unnecessary license costs
In practice, there are various scenarios that lead to unnecessary license costs:
- Employees leave the company but remain active in the system
- Admin rights are distributed decentrally, decisions remain uncoordinated
- Several licenses are combined even though they overlap functionally
- Licenses are allocated on a flat-rate basis instead of according to actual demand
All these points are understandable – but avoidable.
When is a license adjustment worthwhile?
An audit is particularly useful if:
- Your company has grown or has frequent team changes
- You operate internationally and use local admin structures
- You were surprised during the last audit
- Your license costs appear to be above average
- you regularly integrate new tools or add-ons into M365
Especially in medium-sized companies with 500+ employees, there is usually considerable potential for optimization.
How does a professional M365 license clean-up work?
A good clean-up is based on a clear, repeatable process. This can look like this, for example:
1. technical analysis of M365 users
With the help of PowerShell scripts, all users are checked according to defined criteria – such as last login, assigned licenses or function overlaps.
2. structured verification by responsible persons
The conspicuous accounts are not deleted automatically, but are presented to certain responsible persons for review – e.g. via SharePoint lists with a traffic light system and comment function.
3. approval & implementation
Only confirmed cases are implemented. Inactive accounts are deactivated, unnecessary licenses are withdrawn and duplicate licenses are consolidated.
4. cyclic repetition
The clean-up is not carried out once, but established as a recurring process – e.g. quarterly or every six months.
Which tools are used?
Depending on the company’s setup, the following tools are usually used:
- PowerShell (for scripts & evaluations)
- Microsoft Entra ID (formerly Azure AD, for user management)
- SharePoint (for verification & feedback collection)
- M365 Admin Center (to implement the measures)
- Teams / Outlook (for communication & reminders)
Important: The license cleanup uses existing Microsoft tools – no external license manager required.
What are the concrete benefits of the Microsoft 365 license streamlining?
Companies that regularly check their licenses benefit on several levels:
- Cost savings: Depending on the size and initial situation, savings in the six-figure range are possible.
- Legal certainty: Audits can be prepared cleanly and stress-free.
- Transparency: Clear responsibilities create control and trust.
- Scalability: New employees are licensed directly as required.
Best practice: repeatable & automatable
It is important to note that license cleansing is not a one-off project. If you want to work efficiently in the long term, integrate it as an integral part of IT controlling – e.g. via automated evaluations, reminder processes and smart feedback loops.
Conclusion
The license costs for Microsoft 365 are not a law of nature – they are controllable. With a sound analysis, automated processes and clear responsibilities, companies can not only save money, but also optimize their IT processes.
If you also suspect that there is potential in your licenses, it is worth taking the first step.
