Deprecated data layer events

Pre-release notice: These docs reflect the schema that becomes active on 2 Mar 2026. Events marked active are part of that upcoming schema. Events marked deprecated are legacy payloads still emitted today and will stop after 2 Mar 2026.

Looking for current events? See Booking Experts data layer events.

Deprecated events

view_item_list

Legacy CMS view_item_list payload (pre-GA4 ecommerce structure).

Deprecated CMS payload that placed items at the top level instead of inside ecommerce.

Items carried park_id/park_name and used item_category for the accommodation segment.

Replaced by GA4 view_item_list with ecommerce.items.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"view_item_list","item_list_id":"availability_search","item_list_name":"Availability search","items":[{"item_id":"1","item_name":"Category name","item_brand":"Site name","item_category":"house","park_id":1,"park_name":"Park name","price":"120.00","quantity":1,"currency":"EUR","start_date":"2026-02-20","end_date":"2026-02-22","index":1}]});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

view_item

Legacy CMS view_item payload (pre-GA4 ecommerce structure).

Deprecated CMS payload that placed items at the top level instead of inside ecommerce.

Items carried park_id/park_name and used item_category for the accommodation segment.

Replaced by GA4 view_item with ecommerce.items.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"view_item","items":[{"item_id":"1","item_name":"Category name","item_brand":"Site name","item_category":"house","item_list_id":"availability_search","item_list_name":"Availability search","park_id":1,"park_name":"Park name","price":"120.00","quantity":1,"currency":"EUR","start_date":"2026-02-20","end_date":"2026-02-22"}]});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

add_to_cart

Legacy add_to_cart payload (pre-GA4 ecommerce structure).

Deprecated payload that placed currency, value, and items at the top level.

CMS sent only a single rentable type id with optional dates; PMS used prefixed item ids (A/C/P) with richer item fields.

Replaced by GA4 add_to_cart with ecommerce.items.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"add_to_cart","currency":"EUR","value":350,"items":[{"item_id":"A123","item_name":"Amenity","start_date":"2026-02-20","end_date":"2026-02-22"}]});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

remove_from_cart

Legacy remove_from_cart payload (pre-GA4 ecommerce structure).

Deprecated payload that placed currency, value, and items at the top level.

CMS sent only a single rentable type id; PMS used prefixed item ids (A/C/P) with richer item fields.

Replaced by GA4 remove_from_cart with ecommerce.items.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"remove_from_cart","currency":"EUR","value":350,"items":[{"item_id":"A123","item_name":"Amenity","start_date":"2026-02-20","end_date":"2026-02-22"}]});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

select_promotion

Legacy CMS select_promotion payload (items at top level).

Deprecated CMS payload that placed items at the top level instead of inside ecommerce.

Replaced by GA4 select_promotion with ecommerce.items.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"select_promotion","items":[{"item_id":"discount_12","item_name":"Summer Sale"}]});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

search

Legacy CMS search payload (search object with result_count).

Deprecated CMS payload that nested search term and result count under search.

Replaced by GA4 search with the search_term parameter.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"search","search":{"search_term":"summer holiday","result_count":42}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

productImpression

Legacy UA product impressions payload.

Deprecated UA payload for product impressions (pre-GA4).

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"productImpression","ecommerce":{"currencyCode":"EUR","impressions":[{"id":"123","name":"Category name","park_id":1,"park_name":"Park name","category":"house","price":"120.00","position":1}]}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

productDetail

Legacy UA product detail payload.

Deprecated UA payload for product detail impressions (pre-GA4).

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"productDetail","ecommerce":{"detail":{"products":[{"id":"123","name":"Category name","park_id":1,"park_name":"Park name","category":"house","price":"120.00"}]}}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

promotionClick

Legacy UA promotion click payload.

Deprecated UA payload for promotion clicks (pre-GA4).

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"promotionClick","ecommerce":{"promoClick":{"promotions":[{"id":"discount_12","name":"Summer Sale"}]}}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

propertyDetail

Legacy CMS property detail payload.

Deprecated CMS payload for sales module property detail impressions.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"propertyDetail","ecommerce":{"detail":{"products":[{"object_id":"123","object_name":"Property name","price":"120.00","status":"available"}]}}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

formSubmit

Legacy CMS formSubmit payload (form_submit object).

Deprecated CMS payload that nested form fields under form_submit.

Custom fields were emitted as input_* keys and select values could emit additional ids/names.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"formSubmit","form_submit":{"form_id":"contact-form","form_name":"Contact Form","form_response_id":"12345","input_email":"guest@example.com"}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

view_price_information

Legacy CMS view_price_information payload.

Deprecated CMS payload used on reservation detail pricing screens.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"view_price_information","item":{"item_id":"123","item_name":"Accommodation","price":"120.00","currency":"EUR"}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

visit_checkout_step

Legacy checkout step payload from the old checkout portal.

Deprecated PMS payload that mixed checkout metadata and customer fields inside ecommerce.

Replaced by GA4 begin_checkout, view_cart, add_shipping_info, and add_payment_info.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"visit_checkout_step","ecommerce":{"currency":"EUR","value":"350.00","customer_name":"Guest Name","checkout_step_value":1,"checkout_step_name":"Stay","items":[{"item_id":"A123","item_name":"Accommodation"}]}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

select_amenity

Legacy amenity selection payload from checkout portal.

Deprecated event emitted when amenities were selected in the old checkout portal.

Replaced by GA4 add_to_cart with amenity items.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"select_amenity","ecommerce":{"items":[{"item_id":"A123","item_name":"Amenity name"}]}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

deselect_amenity

Legacy amenity deselection payload from checkout portal.

Deprecated event emitted when amenities were deselected in the old checkout portal.

Replaced by GA4 remove_from_cart with amenity items.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"deselect_amenity","ecommerce":{"items":[{"item_id":"A123","item_name":"Amenity name"}]}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

ga4purchase

Legacy GA4 purchase payload used during migration.

Deprecated GA4 purchase payload emitted alongside the hybrid legacy purchase event.

Replaced by the standard GA4 purchase event.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"ga4purchase","ecommerce":{"currency":"EUR","value":"350.00","transaction_id":"ORDER-123","items":[{"item_id":"A123","item_name":"Accommodation"}]}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

ga4option

Legacy GA4 option payload used during migration.

Deprecated GA4 option payload emitted during the checkout portal migration.

Replaced by generate_lead.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"ga4option","ecommerce":{"currency":"EUR","value":"350.00","transaction_id":"ORDER-123","items":[{"item_id":"A123","item_name":"Accommodation"}]}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

ga4optionConfirm

Legacy GA4 option confirmation payload used during migration.

Deprecated GA4 option confirmation payload emitted during the checkout portal migration.

Replaced by close_convert_lead.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"ga4optionConfirm","ecommerce":{"currency":"EUR","value":"350.00","transaction_id":"ORDER-123","items":[{"item_id":"A123","item_name":"Accommodation"}]}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

purchase

Legacy hybrid purchase payload (GA4 + UA fields).

Deprecated checkout portal payload that mixed GA4 ecommerce fields with legacy UA purchase data.

Included currencyCode and purchase.actionField/products alongside GA4 items.

Replaced by GA4 purchase with the standard ecommerce payload.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"purchase","ecommerce":{"currency":"EUR","value":"350.00","transaction_id":"ORDER-123","items":[{"item_id":"A123","item_name":"Accommodation"}],"currencyCode":"EUR","purchase":{"actionField":{"id":"ORDER-123","revenue":"350.00"},"products":[{"id":"123","name":"Accommodation","price":"350.00"}]}}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

checkout

Legacy UA checkout step payload.

Deprecated UA checkout event emitted by the old checkout portal.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"checkout","ecommerce":{"checkout":{"actionField":{"step":1},"products":[{"id":"123","name":"Accommodation","price":"350.00"}]}}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

addToCart

Legacy UA addToCart payload from old checkout portal.

Deprecated UA add-to-cart event emitted during checkout step 1.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"addToCart","ecommerce":{"currencyCode":"EUR","add":{"products":[{"id":"123","name":"Accommodation","price":"350.00"}]}}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

option

Legacy UA option payload for optional bookings.

Deprecated UA option event emitted for bookings created as options.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"option","ecommerce":{"currencyCode":"EUR","option":{"actionField":{"id":"ORDER-123","revenue":"350.00"},"products":[{"id":"123","name":"Accommodation","price":"350.00"}]}}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

failed_payment

Legacy failed_payment payload nested under ecommerce.

Deprecated checkout portal payload that nested failure details under ecommerce.

Replaced by failed_payment with top-level fields.

Top-level parameters

Sample data layer snippet

dataLayer.push({"event":"failed_payment","ecommerce":{"currency":"EUR","value":"350.00","transaction_id":"ORDER-123","reason_failed":"failure"}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

hrental_home

Legacy remarketing object for hotel_rental home pages.

Deprecated data layer object for Google Ads hotel_rental remarketing.

Object fields

Sample data layer snippet

dataLayer.push({"hrental_pagetype":"home"});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

hrental_home_subsite

Legacy remarketing object for hotel_rental park home pages.

Deprecated data layer object for Google Ads hotel_rental remarketing.

Object fields

Sample data layer snippet

dataLayer.push({"hrental_pagetype":"park-home","park_name":"Park name","park_id":"123","country":"Netherlands","region":"Twente","city":"Enschede"});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

hrental_searchresults

Legacy remarketing object for hotel_rental search results.

Deprecated data layer object for Google Ads hotel_rental remarketing.

Object fields

Sample data layer snippet

dataLayer.push({"hrental_pagetype":"searchresults"});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

hrental_offerdetail

Legacy remarketing object for hotel_rental offer detail pages.

Deprecated data layer object for Google Ads hotel_rental remarketing.

This payload often included event: "gtm.load" alongside the hrental fields.

Object fields

Sample data layer snippet

dataLayer.push({"event":"gtm.load","hrental_pagetype":"offerdetail","hrental_id":"123","hrental_park_id":"456","hrental_park_name":"Park name","hrental_startdate":"2026-02-20","hrental_enddate":"2026-02-22","hrental_length_of_stay":"2","hrental_totalvalue":"120.00","hrental_city":"Enschede","hrental_region":"Twente","hrental_country":"Netherlands"});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

hrental_conversion

Legacy remarketing conversion object for hotel_rental.

Deprecated data layer object emitted during old checkout conversion flows.

Object fields

Sample data layer snippet

dataLayer.push({"hrental_id":"123","hrental_park_id":"456","hrental_park_name":"Park name","hrental_pagetype":"conversion","hrental_startdate":"2026-02-20","hrental_enddate":"2026-02-22","hrental_length_of_stay":"2","hrental_totalvalue":"350.00","item_country":"Netherlands","item_region":"Twente","item_city":"Enschede"});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];

return_from_payment

Legacy payment portal return payload.

Deprecated payment portal payload emitted after returning from payment.

Object fields

Sample data layer snippet

dataLayer.push({"reservation":{"id":123,"step":"return-from-payment","amount":350.0}});

Initialize the data layer once on every page: window.dataLayer = window.dataLayer || [];