Vendor Audit Defence Handbook 2026

Software vendors generate billions from compliance audits, not necessarily because enterprises are non-compliant, but because audit processes are designed to maximise claim value. The team that conducts your Oracle LMS engagement, your SAP LASP review, or your Microsoft compliance check has performance targets, claim escalation tools, and years of experience optimising their position. This handbook gives you the equivalent expertise on the buyer side.

Our audit defence practice is staffed by former Oracle License Management Services directors, SAP Global Audit leads, and Microsoft licensing specialists who managed hundreds of enterprise audits before joining our firm. We know the scripts, the claim-building methodologies, the negotiation levers, and the settlement parameters that vendors use internally. More importantly, we know the technical and contractual vulnerabilities in vendor audit claims, and how to challenge them systematically to achieve the 72% average claim reduction we deliver across our audit defence engagements.

• How Oracle LMS/GLAS constructs audit claims, the Oracle-Provided Scripts (OPS) methodology, processor core factor tables, virtualisation rules, and the specific scenarios that routinely generate inflated findings that experienced advisors can challenge
• SAP audit mechanics, indirect/digital access claims, S/4HANA migration use, measurement tool outputs, and the SAP LASP settlement framework that determines what customers actually pay versus initial claim amounts
• Microsoft licensing compliance reviews, Azure hybrid benefit miscalculation patterns, Office 365/M365 over-provisioning analysis, and the Microsoft VLSC reconciliation approach that routinely exposes claim errors
• The 90-day audit response protocol: how to organise your internal team, what information to share and not share with vendor investigators, how to manage the discovery process, and when to engage external counsel versus specialist licensing advisors
• Technical remediation strategies, legitimate licence optimisation during an active audit, virtualisation environment restructuring, retirement of unused deployments, and documentation practices that support your negotiating position
• Settlement frameworks and negotiation strategies: how audit claims resolve in practice, the commercial concessions vendors routinely accept, and the deal structures (backdated licences, forward-looking commitments, migration credits) that minimise your exposure

• 01Vendor Audit Industry: Commercial Intent, Audit Team Structure, and How Claims Are Built to Maximise Revenue
• 02Oracle Audit Defence: LMS/GLAS Process, OPS Scripts, Virtualisation Claims, and Proven Challenge Strategies
• 03SAP Audit Defence: Indirect Access, Digital Access Claims, LASP Framework, and S/4HANA Migration Use
• 04Microsoft Compliance Reviews: Azure, M365, and VLSC, Common Errors and Negotiation Approaches
• 05Audit Response Protocol: 90-Day Timeline, Team Structure, Information Management, and Legal Considerations
• 06Technical Remediation: Legitimate Optimisation Strategies During Active Audits
• 07Settlement Negotiation: Claim Reduction Frameworks, Commercial Concessions, and Deal Structures That Work