Skip to content
FunctionalConsent required

What is the __zlcmid cookie?it needs consent first

Set by Zendesk Live Chat (Zendesk, Inc.). Expires after 1 year.

Block it until the visitor opts in

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

Purpose

Stores the visitor's chat ID for Zendesk Chat.

Cookie details

Cookie name
__zlcmid
Service
Zendesk Live Chat
Provider
Zendesk, Inc.
Category
Functional
Duration
1 year
Consent
Required — opt-in

GDPR requirements

Functional cookies enhance the website's functionality and personalisation. They may be set by us or by third-party providers. Consent is required under GDPR.

For __zlcmid 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 functional 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. 1
    Block it by default

    Configure your consent platform (CMP) or tag manager so Zendesk Live Chat doesn't load until the visitor accepts functional cookies.

  2. 2
    Map it to a consent category

    Put it under “Functional” in your CMP configuration.

  3. 3
    List it in your cookie policy

    Name, purpose, provider (Zendesk, Inc.) and expiry (1 year).

  4. 4
    Sign a DPA

    Have a Data Processing Agreement with Zendesk, Inc. covering the data this cookie collects.

  5. 5
    Verify it works

    In a private window, reject cookies and confirm __zlcmid is not set.

Other Zendesk Live Chat cookies

is __zlcmid on your site?scan it in 2 minutes

Free scan · see every cookie before and after consent