How a Microsoft Audit Begins

Most companies meet a Microsoft audit at the worst possible moment, when the letter is already on the desk and the clock is already running. The truth is that an audit begins well before that letter. It begins with a signal in your telemetry, a selection decision inside Microsoft, and only then a formal contact. Understanding that sequence is the difference between reacting and defending.

The signal that puts you on the list

In 2026 Microsoft does not pick audit targets at random. It runs anomaly detection across licensing and telemetry, and the inputs are richer than most buyers assume. A sudden jump in user counts, an entitlement that does not match observed deployment, and Azure Arc telemetry that reveals servers running without matching licenses all raise your profile. A recent acquisition, a large cloud migration, or the end of an Enterprise Agreement term can do the same.

None of these signals is an accusation. They are simply reasons your account moves up the queue. Knowing what raises the signal lets you reduce your exposure before anyone reaches out.

The three routes the contact can take

When Microsoft does make contact, it arrives through one of three routes, and the route decides how much room you have to respond.

• A SAM engagement is voluntary and sales led. It is presented as a free optimization review, but it is used to find gaps and create a sales conversation. You can decline it.
• A self verification is a contractual demand under your agreement. It asks you to count yourself and report back. It is not optional, though how you run it is very much your choice.
• A formal audit runs through a third party accounting firm under the MBSA audit clause. The auditor has authority to request data and produce findings.

The letter does not always label itself plainly. A friendly invitation to a licensing review is a SAM motion. A reference to your agreement and a deadline is a self verification. A named accounting firm and a formal notice is an audit. Reading which one you face is the first defensive act.

What happens in the first two weeks

The early phase looks administrative, and that is the trap. You are asked for an inventory, a deployment export, and access to management tooling. Each request feels routine. Each one also shapes the data set the auditor will count from. Hand over raw exports without review and you hand the other side the framing.

The buyer side response is to slow the intake down to a controlled pace. You acknowledge the notice, you confirm scope in writing, and you decide what data leaves your environment and in what form. You do not refuse to cooperate. You cooperate on terms that protect your position.

The first moves that protect you

Three moves matter most in the opening days.

1. Identify the route. Confirm whether you face a SAM engagement, a self verification, or a formal audit, because the right response differs for each.
2. Run your own count first. Build an internal Effective License Position before Microsoft sets one. A position you control is a position you can defend.
3. Centralize the channel. Route every request and response through one owner so nothing is conceded in a side conversation.

A recognized defensive move is to decline an initial SAM review and run your own internal assessment with independent help, then respond to any formal demand from a position you have already measured. The point is not to stall. It is to make sure the first number on the table is one you have checked, not one handed to you.

Where we come in

We sit on your side of the table, never the vendor's. When the first letter lands, we help you read the route, control the data intake, and rebuild the Effective License Position from your own records before it hardens into a settlement demand. The opening position almost always overstates what you owe. Our job is to prove the real number and hold the commercial terms.