Microsoft Purview Compliance in Practice: Why Most Organisations Only Use 20% of It 

If your organisation has invested in Microsoft 365, you likely already own far more compliance capability than you realise. This is especially true of Microsoft Purview Compliance, a platform many IT and security teams touch only lightly often enabling a few labels or reviewing an audit log, then stalling. Purview’s breadth can feel overwhelming. Licensing differences add friction. And choosing the “right” place to start is rarely straightforward. 

Yet the cost of underusing Purview goes beyond missed functionality. It creates blind spots in how data is discovered, classified, protected, retained, governed, and evidenced during an audit or investigation. To close those gaps, it helps to understand what Purview actually delivers, why adoption slows, and how organisations can achieve meaningful uplift within a matter of weeks. 

What Microsoft Purview Compliance Actually Does 

Microsoft Purview is the unified suite for data compliance, data governance, data security, and risk management across Microsoft 365 and related environments. Rather than separate tools for classification, protection, retention, auditing and investigation, it provides one control and visibility layer. With Purview, organisations can identify where their sensitive data lives, understand who accesses it, apply consistent protections, and demonstrate a defensible compliance position when required. 

At its core, Purview answers foundational questions:

• Where is our sensitive information stored?
• Who can see it?
• What happens to it when staff share, download, copy or paste it into an AI tool?
• How long should it be kept? And could we prove compliance if an auditor arrived tomorrow? 

Why Most Organisations Use Only Around 20% 

Across mid-market and enterprise environments, the same patterns emerge. The first is that Purview spans multiple domains information protection, identity, device management, cloud governance and security operations. Without a clearly designated owner, it becomes a shared responsibility that lacks momentum. 

Another common issue is the belief that applying sensitivity labels constitutes a compliance program. Labels are only the beginning; when they aren’t linked to lifecycle controls, data loss prevention (DLP), or appropriate monitoring, they become cosmetic rather than functional. 

Licensing also plays a role. Capabilities differ across E3, E5 and addon licences, and some features rely on Entra, Intune or workload-specific configuration. Many teams hesitate before they’ve experienced any of the platform’s value. 

Where Microsoft Purview Is Most Underused 

The challenge is rarely switching features on; it’s connecting them into a consistent, measurable compliance model. 

A major gap occurs in data discovery. Many organisations still rely on manual processes and assumptions about where sensitive data resides. Purview’s sensitive information types, trainable classifiers, and content explorers provide visibility into real data flows, reducing reliance on guesswork. 

Another underused area is policy enforcement. Labels should drive meaningful outcomes—encryption, access restrictions, visual markings, and conditional access rules. Purview DLP must extend these protections across Exchange, SharePoint, OneDrive, Teams, endpoints, cloud apps and even browsers. Without this enforcement layer, compliance remains theoretical. 

Retention is also frequently neglected. Keeping everything is expensive and risky, while inconsistent deletion erodes compliance defensibility. Purview’s retention policies, records management and eventbased retention help organisations meet regulatory requirements while reducing longterm exposure. 

Finally, investigation readiness is often overlooked. Effective incident response depends on knowing not just who accessed a file, but what actions were taken. Purview’s audit capabilities can reconstruct events with defensible evidence—provided audit retention and advanced logs are properly configured. 

Quick Wins: A 30–90 Day Purview Compliance Rollout 

A practical path forward is to build the compliance chain discover, classify, protect, prevent, retain and prove—in manageable steps. 

The most effective starting point is a simple, business aligned sensitivity label set. Most organisations can begin with four tiers (Public, Internal, Confidential and Highly Confidential) and pilot them with a single department. Automated labelling reduces user friction and improves consistency. 

From there, those labels need to be paired with real world protection. Encrypting highly confidential content, restricting forwarding, or applying consistent sensitivity to Teams and meeting artefacts helps shift labelling from symbolic to tangible. 

Introducing targeted DLP controls next delivers immediate risk reduction. Focusing on well-known issues such as external sharing of customer data or sending reports to personal email accounts helps reduce noise and demonstrate value quickly. 

Retention is another fast win. Addressing Exchange, SharePoint/OneDrive and Teams first dramatically improves auditability and reduces discovery costs. Finally, introducing a simple monthly compliance scorecard ensures ongoing accountability and visibility. 

Use Cases That Resonate with Australian Organisations 

Many Australian organisations are prioritising AI and Copilot readiness, and Purview plays a foundational role in this. Consistent labelling, reduced oversharing and controls that prevent sensitive content being fed into AI prompts are now essential for responsible AI governance. 

Regulatory expectations are another driver. Purview supports ISO 27001aligned controls, defensible deletion, legal investigations, HR processes and sectorspecific retention requirements. For heavily regulated industries, it strengthens assurance and allows compliance teams to respond quickly to audit or legal requests. 

Best Practices for a Sustainable Purview Program 

Purview succeeds when treated as an ongoing program rather than a oneoff project. Assigning a clear product owner, starting with a narrow scope and expanding once controls are stable, and aligning compliance with identity and device governance all contribute to longterm success. Automation should be preferred wherever possible to reduce user impact and improve adoption. 

While Purview is powerful, organisations should be mindful of common pitfalls. DLP must be rolled out gradually, and policies tuned carefully to avoid noise or overrestriction. Licensing needs to be considered early to avoid misalignment between expectations and capability. Access permissions across SharePoint and Teams remain a prevalent risk if not addressed holistically. 

Why Microsoft Purview Outperforms Point Solutions 

Many organisations assemble a patchwork of data protection and compliance tools, often resulting in inconsistent policies, duplicated effort and persistent gaps. Purview’s strength lies in its unified labelling, protection, retention, auditing and investigation model across Microsoft 365, endpoints and cloud services. When combined with Microsoft Defender and Entra, it forms a cohesive and integrated compliance posture that individual point solutions cannot replicate. 

Where to Go Next 

If your organisation is using only a fraction of Microsoft Purview, the most effective next step is to identify the outcomes that matter most—reducing oversharing, demonstrating compliance, preparing for AI, or implementing defensible retention. Once those priorities are clear, the Purview configuration can be built around them in a structured, measurable way. 

Why A1 Technologies  

A1 Technologies helps organisations move beyond baseline configurations and unlock the full value of Microsoft Purview. Our team can assess your current posture, design a practical roadmap, and implement controls with minimal disruption to users.

Rob Rattray

Rob Rattray is the Commercial Director of A1 Technologies, a Microsoft consultancy based in Australia. Rob's focus is settings the strategic and cultural direction for A1 Technologies, while also overseeing Sales and Marketing. Rob is passionate about business and helping good people do good things through technology.