SAM Engagement vs Formal Audit: The Distinction
Microsoft's licensing agreements contain an audit right — typically in the "Verification" section — that allows Microsoft to verify your licence compliance through an independent accountant or auditing firm, upon reasonable written notice. This is the formal audit mechanism that creates a contractual obligation to cooperate.
A SAM engagement is structurally different. It is Microsoft-initiated but framed as a partnership activity, conducted through Microsoft's internal SAM team or an accredited Microsoft SAM partner. Participation is technically voluntary — your contract does not require you to participate in a SAM engagement in the same way it requires you to cooperate with a formal verification audit. However, declining SAM significantly increases the probability that Microsoft will proceed to a formal audit, and Microsoft's account team will characterise non-participation as an indicator of compliance risk.
Voluntary SAM Engagement
- Microsoft-initiated but not contractually mandatory
- Conducted by Microsoft SAM team or accredited SAM partner
- Typically 2-4 months duration
- More cooperative framing, less adversarial process
- Microsoft's account team actively involved throughout
- Outcome: Licence gap report + true-up proposal
- No formal verification notice required from Microsoft
Formal Verification Audit
- Initiated under contractual verification right
- Conducted by independent auditor (not Microsoft directly)
- Typically 3-6 months duration
- Formal legal process with written notices
- Microsoft legal team involved in escalation
- Outcome: Formal audit report + licence adjustment demand
- Requires Microsoft to provide required contractual notice
How Microsoft SAM Engagements Work
A Microsoft SAM engagement follows a broadly predictable process, though the specific steps vary depending on whether it is conducted by Microsoft's internal SAM team or an accredited SAM partner.
Initiation
Microsoft initiates the engagement through your account manager or a dedicated SAM specialist, typically with a letter or email describing the SAM programme and inviting participation. The framing is consistently positive — Microsoft positions SAM as a service to help you optimise your licensing investment, identify cost savings, and ensure you are appropriately licensed for your current usage. The commercial intelligence behind the invitation — that Microsoft believes you have licence exposure — is not disclosed.
Scoping and Tool Deployment
Microsoft or the SAM partner deploys assessment tools to collect deployment data from your environment. The primary tool is Microsoft's own MAP Toolkit (Microsoft Assessment and Planning Toolkit) or a SAM partner tool. These tools collect data on installed Microsoft products, product versions, and configuration details across your server and endpoint estate. Cloud consumption data (Azure, Microsoft 365) is typically collected from Microsoft's own administration portals with your authorisation, rather than through deployed tools.
Analysis and Effective Licence Position Report
The collected data is analysed to produce an Effective Licence Position (ELP) report — a document showing your deployed Microsoft products versus your licensed entitlements. The ELP identifies any shortfall (unlicensed deployment) or surplus (over-licensed position). In practice, ELP reports almost always identify shortfalls rather than surpluses, because Microsoft's SAM programme is primarily focused on compliance rather than spend optimisation.
True-Up Proposal
Based on the ELP, Microsoft's account team presents a true-up proposal — a recommendation to purchase additional licences for the identified compliance gaps. The proposal typically includes list price for the additional licences plus an annual support or subscription commitment. The initial proposal is negotiable, particularly in the context of an upcoming EA renewal.
Microsoft's SAM programme is genuinely less aggressive than Oracle's LMS in terms of methodology inflation — Microsoft's data is typically more accurate and Microsoft's counting methodology less contestable. The primary defence against Microsoft SAM findings is not methodological challenge (as with Oracle) but entitlement analysis — ensuring all historical licence entitlements are credited against the deployment count before any true-up is agreed.
Should You Participate Voluntarily?
The decision to participate in a voluntary SAM engagement — rather than declining or deferring until a formal audit is initiated — should be made based on your assessment of your own likely licence position, not on Microsoft's framing of the process as a partnership activity.
Participate voluntarily if: You have a robust internal SAM programme and believe your licence position is broadly compliant; you have recently completed a licence rationalisation initiative; you are approaching an EA renewal and want to use the SAM finding to inform your renewal negotiations proactively; or your organisation has a policy of cooperative engagement with major vendors and the commercial risk of a formal audit relationship is assessed as higher than the compliance exposure.
Defer or decline if: You have not completed an independent assessment of your own licence position and do not know whether your deployment exceeds your entitlement; you have recently undergone significant infrastructure changes, M&A activity, or Microsoft 365 migrations not yet reconciled against your licence position; or you are in the middle of an EA renewal negotiation and do not want the SAM process used as commercial leverage in the renewal discussion.
The practical consequence of declining is typically an escalation to formal audit within 6-12 months. If you believe your compliance position is strong, declining is a viable strategy that forces Microsoft to use its formal contractual mechanism with its associated procedural protections. If you believe your compliance position has material gaps, declining simply defers the inevitable at the cost of a less cooperative process.
Microsoft's SAM Focus Areas in 2026
Microsoft 365 Licence Tier Compliance
The primary Microsoft 365 SAM finding is users with E5-level features (Microsoft Defender, Microsoft Purview, Microsoft Intune full suite, Microsoft Viva) licensed at E3 tier pricing. Microsoft has significant visibility into feature usage through its cloud telemetry, and M365 tier compliance is consistently among the top three SAM findings in 2025-2026 engagements. See our Microsoft 365 E5 vs E3 analysis for the cost implications.
Azure Consumption vs MACC Commitment
Enterprises with Microsoft Azure Consumption Commitments (MACC) face growing scrutiny around whether their actual Azure consumption meets committed levels. SAM engagements increasingly include an Azure consumption review, particularly for enterprises whose Azure spend has changed significantly since their last EA renewal. The compliance question in Azure is usually not over-consumption but under-consumption against a committed level — which has different commercial implications but can affect EA renewal terms.
Microsoft Copilot Licensing
Microsoft Copilot for Microsoft 365 requires a Copilot add-on licence (currently £24.70/user/month) on top of a qualifying M365 base licence. As Copilot adoption increases, SAM engagements are beginning to include Copilot deployment reviews. Microsoft has direct visibility into Copilot feature activation through its cloud telemetry. See our Microsoft Copilot Licensing guide for full pricing detail.
Windows Server Licensing in Hybrid Environments
Windows Server licensing in hybrid environments — particularly for workloads running on AWS EC2, Google Compute Engine, or in VMware — is a growing SAM focus. The Azure Hybrid Benefit allows Windows Server licences with active Software Assurance to be used in Azure, but not in other cloud environments without separate cloud provider arrangements. Enterprises running Windows Server workloads on non-Azure cloud without appropriate licensing face compliance exposure that Microsoft's cloud intelligence can identify. See our Windows Server Licensing guide.
SQL Server Licensing
SQL Server licensing in virtualised and cloud environments is a consistently productive SAM finding area. SQL Server Enterprise Edition licensing requirements in VMware environments, SQL Server in Azure versus on-premises licence entitlements, and SQL Server use by third-party applications (analogous to SAP's indirect access issue) are recurring themes. Our dedicated SQL Server Licensing guide covers the key compliance scenarios.
What Microsoft Already Knows About You
Unlike Oracle, which requires physical access to your infrastructure to collect deployment data, Microsoft has substantial visibility into your Microsoft software deployment through its own cloud systems. This is a fundamental difference in the nature of a Microsoft SAM engagement compared to an Oracle audit.
Microsoft's data sources include: Microsoft 365 administration portal data (every user, every assigned licence, every enabled feature); Azure portal consumption and resource deployment data; Windows activation and update service data (showing Windows OS versions and counts on enrolled devices); Defender for Endpoint and Intune enrolled device data; and Microsoft Entra ID (formerly Azure AD) user and application data.
The practical implication is that Microsoft's ELP report is often more accurate than an Oracle LMS finding — because Microsoft is working from its own authoritative data rather than from scripts run on your infrastructure. However, this does not mean you cannot challenge the ELP. The most common successful challenges are not methodological but entitlement-based: Microsoft's ELP may not credit all historical licences you hold, may not reflect licence transfers, renewals, or retirement of legacy systems, and may include users or devices that are not properly your compliance responsibility.
Preparing for a SAM Engagement
The most effective SAM preparation is completed before the SAM engagement begins — ideally as part of your ongoing EA management cycle rather than in response to a specific Microsoft request.
Conduct an Independent M365 Licence Audit
Before Microsoft's SAM partner arrives, run your own Microsoft 365 licence utilisation review. Identify every assigned M365 licence, categorise users by actual feature usage versus licensed tier, and identify opportunities to right-size licences (both addressing compliance gaps and removing unlicensed over-provisioning). Microsoft's SAM focus is on gaps you are responsible for remediating — your focus should also include identifying shelfware and over-provisioning that reduces your renewal cost.
Compile Your Complete Entitlement Record
Gather all Microsoft volume licensing agreement documents, Software Assurance entitlements, upgrade rights, licence transfer records, and any prior audit settlement agreements. The totality of your licence entitlement — including licences that may have been purchased many years ago and are still valid — must be credited against the deployment count in Microsoft's ELP. Incomplete entitlement records are the most common reason Microsoft's initial SAM finding overstates the genuine compliance gap.
Align SAM Timing With EA Renewal
If your EA renewal is within 18 months, the SAM engagement findings will directly affect the renewal commercial discussion. Consider proactively initiating your own internal licence position review and bringing the results to the renewal negotiation rather than waiting for Microsoft's SAM programme to drive the commercial terms. An enterprise that presents Microsoft with a self-conducted compliance assessment at renewal time is in a stronger negotiating position than one that receives Microsoft's SAM finding as a surprise during renewal discussions.
Navigating the True-Up Proposal
When Microsoft presents its true-up proposal based on the SAM ELP, treat the initial proposal as the opening position in a negotiation rather than a final determination.
Review the entitlement credits Microsoft has applied against the deployment count — this is where the most common errors occur. Verify that all Software Assurance upgrade rights have been credited, all historic licence purchases are included in the entitlement total, and any licences purchased through Microsoft Cloud Solution Provider (CSP) agreements are properly reflected in the ELP.
The true-up price itself is negotiable, particularly in the context of an EA renewal. Microsoft's account team has flexibility on true-up pricing, especially when the true-up is bundled with a multi-year renewal commitment. The most effective approach is to resolve the true-up as part of the broader EA renewal negotiation rather than treating it as a standalone compliance remediation. See our Microsoft EA Negotiation Guide 2026 for detailed renewal tactics and our Microsoft Licensing Complete Guide for the full licensing context.
When SAM Escalates to a Formal Audit
If you decline or significantly defer a SAM engagement, Microsoft may initiate a formal verification audit under the audit rights clause in your licence agreement. A formal audit involves a written verification notice, an independent auditing firm (not Microsoft directly), and a more structured procedural process.
The formal audit process is contractually governed — meaning you have the same rights to limit scope, review methodology, and challenge findings that you have in any other vendor audit. Microsoft's formal audit findings are typically less inflated than Oracle's, but the commercial stakes are identical: the finding drives a licence true-up proposal that is the basis of a commercial negotiation.
If Microsoft initiates a formal audit, follow the response framework in our Software Audit Process guide and contact our specialist team for an immediate Microsoft licence position assessment. The Vendor Audit Defence Handbook includes a dedicated Microsoft audit response section.