AnalyticsConsent required

What is the `SM` cookie?it needs consent first

Set by Microsoft Clarity (Microsoft Corporation). Expires after Session.

Block it until the visitor opts in

Under the ePrivacy Directive (Art. 5(3)) and GDPR, SM may only be set after the visitor accepts analytics cookies.

Purpose

Used to synchronise the MUID across Microsoft domains.

Cookie details

Cookie name: SM
Service: Microsoft Clarity
Provider: Microsoft Corporation
Category: Analytics
Duration: Session
Consent: Required — opt-in

GDPR requirements

Analytics cookies help website owners understand how visitors interact with websites by collecting and reporting information anonymously. Consent is required under GDPR.

For SM to be compliant, it must be:

Not set on the first visit — not even for a fraction of a second
A consent banner is shown, and the visitor actively accepts analytics cookies
Stays blocked if the visitor rejects or ignores the banner
Listed in your cookie policy with its name, purpose and retention period
Removed or invalidated when the visitor withdraws consent

How to handle it

1
Block it by default
Configure your consent platform (CMP) or tag manager so Microsoft Clarity doesn't load until the visitor accepts analytics cookies.
2
Map it to a consent category
Put it under “Analytics” in your CMP configuration.
3
List it in your cookie policy
Name, purpose, provider (Microsoft Corporation) and expiry (Session).
4
Sign a DPA
Have a Data Processing Agreement with Microsoft Corporation covering the data this cookie collects.
5
Verify it works
In a private window, reject cookies and confirm SM is not set.