CNIL with Consent: Tracking Ecommerce and other actions after consent is given

Consentless tracking with CNIL is covered in this FAQ. The FAQ includes the requirement to disable Ecommerce tracking, Heatmaps, Session Recordings and other Matomo features. But what if you want to track these actions once a visitor grants consent? This guide will show you the basics of allowing these features to track data, conditioned on consent status.

Using Third-party Consent Managers

If you have a third-party Consent Management Platform (CMP), your provider should provide a method for you to check the status of visitor consent. There are many CMPs, so the method of getting consent status will vary. This example will use CookieBot methods – you will need to check with your CMP provider to find an equivalent method.

CookieBot makes consent status available within the Cookiebot.consent variable on each page. This variable can be used to fire Ecommerce actions only when the consent status for « statistics » is granted. For example…

//Track an ecommerce order only if 'statistics' consent is granted
if (typeof Cookiebot !== 'undefined' && Cookiebot.consent) {
  if (Cookiebot.consent.statistics == true) {
    _paq.push(['trackEcommerceOrder',
      "000123", // (Required) orderId
      0, // (Required) grandTotal (revenue)
      0, // (Optional) subTotal
      0, // (optional) tax
      0, // (optional) shipping
      false // (optional) discount
    ]);
  }
}

The above method can also be used to enable Heatmaps and Session Recordings when consent is granted…

//enable Heatmaps and Session Recordings only if 'statistics' consent is granted
_paq.push(['HeatmapSessionRecording::disable']);
if (typeof Cookiebot !== 'undefined' && Cookiebot.consent) {
  if (Cookiebot.consent.statistics == true) {
    _paq.push(['HeatmapSessionRecording::enable']);
  }
}