DataLayer for Google Tag Manager
How To Configure
DataLayer for Google Tag Manager

Integrate Google Opt-in Survey with Magento 2

Please Note: The settings below require our Datalayer for Google Tag Manager for Magento and some features also require our Enhanced Ecommerce or Google Analytics 4 extensions..

The survey opt-in module lets customers take part in the Google Customer Reviews (GCR) program and also transmits the necessary transaction information to Google. This module is required on all order confirmation pages to participate in Google Customer Reviews

Purchase Page / Order Confirmation Page
Tag Configuration
  Tag type : Custom Html

Trigger Configuration
  Trigger: All Custom Events
  Event Name : purchase


<script src="" async defer></script>

require(['DataLayerPurchaseApi'], function (dataLayerPurchaseApi) {
    var expectedDeliveryDays = 5;
    var getDeliveryDate = function() {
        var deliveryDate = new Date(new Date().getTime()+(expectedDeliveryDays*24*60*60*1000));
        return deliveryDate.getFullYear() + '/' + ('0' + deliveryDate.getMonth()).slice(-2) + '/' + ('0' + deliveryDate.getDay()).slice(-2);
    var purchase = dataLayerPurchaseApi();
    window.renderOptIn = function() {
       window.gapi.load('surveyoptin', function() {
             "merchant_id": "MERCHANT_ID",
             "order_id": purchase.getOrderId(),
             "email": purchase.getEmail(),
             "delivery_country": purchase.getCurrencyCode(),
             "estimated_delivery_date": getDeliveryDate(),

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Magento Enhanced E-commerce

If your are using Magento + Google Analytics, then you need Enhanced E-commerce for Google Tag Manager.

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Get more from your order confirmation emails by promoting other complementary products.