A Microsoft 365 optimisation program improves ROI by aligning licences, security, and user adoption to real work patterns. Most organisations pay for advanced capability but only use a fraction, leaving “shelfware” spend, inconsistent governance, and avoidable risk. A structured approach combines usage analytics, licence right-sizing, configuration hardening, and targeted enablement to lift productivity, reduce wastage, and strengthen compliance.
Definition
What is Microsoft 365 optimisation?
Microsoft 365 optimisation is the disciplined practice of proving value from Microsoft 365 by measuring real usage, correcting configuration gaps, and matching licence entitlements to role needs. It covers three linked layers. First, commercial efficiency through licence governance and renewal control. Second, operational efficiency through adoption of high-value capabilities such as Teams governance, SharePoint information architecture, and workflow automation. Third, risk reduction through identity, data protection, and compliance configuration.
What does “maximise M365 ROI” mean in practical terms?
“Maximise M365 ROI” means each paid capability either delivers measurable business outcomes or is removed. Outcomes should be expressed in business terms such as reduced onboarding time, fewer security incidents, faster document cycle time, or fewer duplicated tools. ROI also includes avoided cost, for example eliminating unused licences or reducing third-party tools because native Microsoft 365 capability is properly enabled.
Context
Why do organisations pay for Microsoft 365 and still underuse it?
Underuse is usually structural, not behavioural. Microsoft 365 spans identity (Entra), collaboration (Teams, SharePoint), endpoint management, security, compliance, and automation. Those domains sit across IT, Security, Risk, and business owners, and they are managed in different admin portals. That fragmentation delays governance decisions and leaves features “available” but not usable at scale. Microsoft notes that Copilot readiness alone spans multiple service domains and portals, which increases the chance of gaps and delays.¹
How big is the adoption and visibility problem?
Two signals matter for executives: visibility and informal tool adoption. Flexera reports that 53% of IT teams struggle to gain or maintain complete visibility of technology investments, which is the root cause of subscription waste.² In parallel, Microsoft and LinkedIn report that 75% of knowledge workers use generative AI at work, and many bring their own tools when organisations move slowly.³ That pattern increases data leakage risk and makes “maximise M365 ROI” harder because value and risk move outside the platform.
Mechanism
How does Microsoft 365 value leak over time?
Value typically leaks through four mechanisms.
First is inactive or mismatched licences. One large-scale analysis of 3.4 million Office 365 users found 18% of licences were unused, showing how quickly shelfware accumulates without governance.⁴
Second is partial configuration. For example, MFA and modern access controls are available but not consistently enforced across all users and legacy protocols.⁵
Third is content sprawl. When SharePoint and OneDrive storage grows without lifecycle controls, users cannot reliably find the right version, and sensitive content remains broadly accessible.
Fourth is process duplication. Teams and SharePoint become “places to store things” rather than connected to decision-making and workflows through Power Automate and governed templates.
What creates measurable uplift when optimising Microsoft 365?
The biggest uplift comes from aligning identity, information architecture, and role-based entitlements. When identity is hardened, data access becomes predictable. When SharePoint sites and Teams are standardised, collaboration becomes repeatable. When licences are right-sized and adoption is targeted, users get fewer choices but better outcomes. Microsoft positions Viva Insights as a way to generate privacy-protected, data-driven insights on collaboration and productivity patterns, which supports this alignment.⁶
Comparison
How is Microsoft 365 optimisation different from a licence audit?
A licence audit is a cost exercise. Microsoft 365 optimisation is a value and risk program. A pure audit may reclaim unused licences, but it often misses the operational layer where users fall back to email, unmanaged file shares, or third-party tools. Optimisation keeps cost reduction but ties it to enablement, security posture, and information governance, so savings do not rebound at the next project surge.
When should you consider upgrading versus optimising first?
Optimise first when there is limited usage evidence for advanced tiers. Upgrades make sense when there is a clearly governed need for additional security, compliance, or AI capability, and when data access hygiene is already reliable. Microsoft’s Copilot guidance highlights that Copilot inherits existing Microsoft 365 permissions, so weak governance can surface sensitive information in AI outputs.⁷ That is a strong reason to optimise foundations before expanding capability.
Applications
Where should you start to get quick wins in Microsoft 365 optimisation?
Start with three fast, high-impact workstreams.
Licence right-sizing and inactivity reclamation
Measure active use by role and service plan, then remove or downgrade where value is not realised. Use a clear definition of “inactive” that matches business cycles, not only last login.Identity and access hardening
Enforce MFA consistently, remove legacy authentication, and standardise Conditional Access patterns for high-risk apps and locations. Security misconfiguration guidance consistently points to MFA gaps and legacy protocols as common weaknesses.⁵Collaboration standards that reduce friction
Standardise Teams creation, naming, lifecycle, and external sharing rules. Establish SharePoint site templates and ownership models, so content has a known home, retention expectations, and access boundaries.
How do you industrialise optimisation across business units?
Industrialisation requires a repeatable operating model: policy, analytics, and enablement.
Policy defines what “good” looks like, aligned to risk appetite. For Australian organisations, ACSC Essential Eight provides a baseline set of mitigation strategies and maturity levels that can anchor identity and endpoint expectations.⁸ Privacy obligations also require “reasonable steps” to secure personal information, which reinforces the need for consistent controls and governance.⁹
Analytics provides the evidence layer. Use Microsoft 365 admin usage reports, Entra sign-in logs, and Viva Insights where appropriate to measure adoption and risk signals.⁶ ¹⁰
Enablement makes policy usable. Build role-based training for high-impact cohorts such as executive assistants, customer-facing managers, contact centre support teams, and frontline supervisors.
To operationalise this at scale, many organisations implement a single source of truth that combines usage, adoption, and business impact metrics. Customer Science Insights is designed to support insight-led decisions across technology and experience initiatives: https://customerscience.com.au/csg-product/customer-science-insights/
Risks
What are the main risks of “optimising” Microsoft 365 the wrong way?
The first risk is optimising only for cost and breaking productivity. If you downgrade licences without mapping role needs, users will adopt shadow tools and increase operational risk.
The second risk is enabling AI features before access hygiene is fixed. Microsoft’s Copilot Control System guidance emphasises security and governance controls for Copilot and agents, reflecting the reality that AI can amplify existing permission mistakes.⁷ ¹¹
The third risk is privacy harm through over-instrumentation. Productivity analytics must be implemented with privacy protections, clear purpose limitation, and appropriate access controls. Microsoft positions Viva Insights as privacy-protected and role-based, but organisations still need governance and communications to maintain trust.⁶
The fourth risk is compliance drift. Without retention, classification, and lifecycle controls, content accumulates and increases breach impact and regulatory exposure.
Measurement
How do you measure Microsoft 365 optimisation outcomes?
Measurement should connect technical signals to business outcomes, using a small set of indicators that executives can track quarterly.
Cost and utilisation
Percentage of inactive licences reclaimed and sustained over two renewal cycles⁴
Licence mix aligned to role-based service plans, with exception approvals
Visibility coverage for SaaS and Microsoft 365 assets, addressing the common visibility gap²
Security and risk
MFA coverage, phishing-resistant options for high-risk users, and reduction of legacy authentication pathways⁵ ¹²
Reduction in risky sign-ins and high-privilege standing access, measured via Entra sign-in logs and alerts¹⁰
Compliance posture uplift for retention and sensitivity labels where applicable
Productivity and collaboration
Reduction in duplicated collaboration spaces and improved content findability
Meeting and collaboration load signals where appropriate, using privacy-protected organisational insights⁶
Next Steps
What is a practical 90-day plan to maximise M365 ROI?
Weeks 1–2: Baseline and scope
Confirm which business outcomes matter most, then capture a baseline across licences, security posture, and collaboration sprawl. Identify two high-value cohorts for rapid enablement.
Weeks 3–6: Fix foundations
Enforce identity controls, clean up guest access pathways, and remove legacy authentication where feasible. Establish Teams and SharePoint governance standards, including ownership and lifecycle.
Weeks 7–10: Right-size and enable
Reclaim inactive licences, run role-based right-sizing, and deliver focused training and job aids that match the chosen cohorts.
Weeks 11–13: Lock in governance
Implement a renewal and change process, define KPIs, and assign accountable owners across IT, Security, and business operations.
If you need an external capability to accelerate governance, adoption, and measurable value realisation, a managed engagement can shorten time-to-outcome: https://customerscience.com.au/service/cx-consulting-and-professional-services/
Evidentiary Layer
What evidence supports the business case for Microsoft 365 optimisation?
The evidence base combines three independent lines.
Visibility gaps drive subscription waste
When over half of IT teams lack complete visibility into technology investments, optimisation cannot be sustained without better reporting and governance.²Unused licences are common at scale
Large-scale tenant analyses show meaningful unused licence rates, which translate directly into recoverable spend and improved licence mix decisions.⁴AI adoption is already happening without governance
When a large proportion of knowledge workers use AI tools and some bring their own tools, organisations need secure, governed platforms to capture value and reduce leakage risk.³
FAQ
What is the fastest way to find wasted Microsoft 365 licences?
Use tenant usage and sign-in evidence to identify inactive users, then confirm with HR and line managers before reclaiming. Sustain it with a monthly governance cycle so waste does not return.⁴
Does Microsoft 365 optimisation help security, or is it only a cost play?
It directly improves security when it increases MFA coverage, removes legacy authentication, and standardises Conditional Access patterns. These are common misconfiguration areas in Microsoft 365 tenants.⁵
Should we deploy Copilot before fixing SharePoint permissions?
Fix permissions and information governance first. Copilot inherits existing access, which can surface sensitive information if permissions are too broad or poorly maintained.⁷ ¹¹
What metrics best prove we “maximize M365 ROI”?
Track reclaimed licence value sustained over renewals, MFA and risky sign-in improvements, and productivity signals tied to specific cohorts and workflows.² ⁴ ¹⁰
How do we reduce shadow AI while improving productivity?
Offer a governed, secure AI pathway inside Microsoft 365, paired with clear data handling rules and training. Use policy and audit signals to detect uncontrolled use, then provide approved alternatives.³ ⁷
What tooling can support ongoing optimisation and communication at scale?
Use a combination of Microsoft-native reporting and an experience and communications layer that makes actions clear to leaders and frontline teams. For AI-enabled communications and measurement, consider Commscore AI: https://customerscience.com.au/csg-product/commscore-ai/
Sources
Microsoft Tech Community. “Accelerating Microsoft 365 Copilot Adoption with Automated Readiness Assessment.” 2026. https://techcommunity.microsoft.com/blog/microsoft365copilotblog/accelerating-microsoft-365-copilot-adoption-with-automated-readiness-assessment/4488879
Flexera. “Flexera 2024 State of ITAM Report… Over Half Lack Complete Visibility.” Press release, 12 Jun 2024. https://www.flexera.com/about-us/press-center/flexera-2024-state-of-itam-report-finds-software-audit-costs-continue-to-rise
Microsoft and LinkedIn. “2024 Work Trend Index Annual Report.” PDF, May 2024. https://assets-c4akfrf5b4d3f4b7.z01.azurefd.net/assets/2024/05/2024_Work_Trend_Index_Annual_Report_663d45200a4ad.pdf
Petri. “How Much Money is Your Enterprise Wasting On Unused Office 365 Licenses?” (analysis of 3.4m users). https://petri.com/webinar/how-much-money-is-your-enterprise-wasting-on-unused-office-365-licenses/
Nudge Security. “Top 5 Microsoft 365 Security Misconfigurations and How to Fix Them.” 2024. https://www.nudgesecurity.com/post/top-5-microsoft-365-security-misconfigurations–and-how-to-fix-them
Microsoft Learn. “Introduction to Viva Insights.” 2025. https://learn.microsoft.com/en-us/viva/insights/introduction
Microsoft Learn. “Microsoft 365 Copilot enablement resources.” Updated 20 May 2025. https://learn.microsoft.com/en-us/copilot/microsoft-365/microsoft-365-copilot-enablement-resources
Australian Cyber Security Centre (ACSC). “Essential Eight Maturity Model.” https://www.cyber.gov.au/business-government/asds-cyber-security-frameworks/essential-eight/essential-eight-maturity-model
Office of the Australian Information Commissioner (OAIC). “APP 11 Security of personal information.” Updated 3 Oct 2025. https://www.oaic.gov.au/privacy/australian-privacy-principles/australian-privacy-principles-guidelines/chapter-11-app-11-security-of-personal-information
Microsoft Learn. “Microsoft Entra multifactor authentication reporting in sign-in logs.” https://learn.microsoft.com/en-us/entra/identity/authentication/howto-mfa-reporting
Microsoft Learn. “Copilot Control System: Security and governance.” Updated 13 Oct 2025. https://learn.microsoft.com/en-us/copilot/microsoft-365/copilot-control-system/security-governance
NIST. “SP 800-63B-4 Digital Identity Guidelines: Authentication and Authenticator Management.” 2025. https://csrc.nist.gov/pubs/sp/800/63/b/4/final