Google Tag Manager Interface

Good to know: the module ships with a ready-to-use, generic configuration that fits the vast majority of market themes. The advanced settings below (selectors, options…) are already pre-filled: most of the time you only need to adjust them if your theme departs from the standard.

The Google Tag Manager interface on the home page gathers the entire container configuration. It is the essential setting: without GTM enabled, no tag works.

Google Tag Manager interface of the Kixell Tag module

Configuration tab

Google Tag Manager configuration:

Enable Google Tag Manager: without it, tracking cannot work.
GTM container ID: in the GTM-XXXXXXX format.
Do you use a caching system?: enable only if your store uses a strong / full-page cache (Varnish, reverse proxy, HTTP cache…). This is not PrestaShop's internal cache.
Revenue and prices excluding tax?: determines whether order revenue and product prices are reported in the dataLayer excl. tax or incl. tax. It has no impact on the revenue sent to Google Ads, which has its own setting in the dedicated section of the module.

GTM Server Side & Google Tag Gateway:

From this section of the interface, you can enable GTM Server Side and/or Google Tag Gateway:

for GTM Server Side, see Server Side GTM;
for Google Tag Gateway, see Google Tag Gateway;
if neither is enabled, see Client Side GTM.

"Product selection and listing" tab

This tab tunes product detection on listing pages.

Product selection and listing tab in the Kixell Tag GTM interface

Dynamic detection of product listing changes: when a list changes following a user action (filter, pagination, sorting…), those changes are detected to trigger view_item_list. Add the CSS selectors of the containers wrapping your listings (for example #products, .product-list).
Product click detection (select_item): provide the container selector of a product in the list and the selector of the links to the product page. The container must carry the HTML attributes data-id-product and data-id-product-attribute.

"Checkout" tab

This tab identifies the shipping and payment steps using CSS selectors.

Checkout tab in the Kixell Tag GTM interface

Carrier selection (add_shipping_info): the submit button selector of the shipping step, then for each carrier a wrapping selector and a name selector.
Payment selection (add_payment_info): for each payment method, a wrapping selector and a name selector.

"Order statuses" tab

Order statuses tab in the Kixell Tag GTM interface

Select the invalid order statuses: on confirmation, orders in those statuses are not sent as a transaction (purchase) to Google Analytics. For example, tick "Payment error". Select these statuses carefully.

"dataLayer items enrichment" tab

This tab enriches GA4 items without code, by adding your product data.

dataLayer items enrichment tab in the Kixell Tag GTM interface

From attribute groups: map a PrestaShop attribute group (Dimension, Size, Color…) to an item property name (e.g. item_size, item_color).
From custom fields: map a custom field (per language) to an item property (e.g. Circuit → item_circuit).
A "Mask personal data" option is available for each mapping.

Do not add any field likely to contain personal data. The masking option helps cover it, but compliance remains your responsibility.

For enrichment driven by a third-party module (server-side, per GA4 event), see Items enrichment.

Why everything goes through Google Tag Manager

Google Tag Manager (GTM) centralizes the management of your tags, triggers and variables in a single container, without modifying your store's code. Kixell Tag provides a ready-to-use GTM configuration: the module pushes a normalized dataLayer and GTM takes care of forwarding the events to GA4, Google Ads, Meta and the other platforms. You can check that tags fire correctly with GTM's Preview mode and Google's Tag Assistant extension, before publishing your changes safely.