Deprecated data layer events

Legacy events and payloads being phased out, with migration guidance.

Status notice: This article lists legacy compatibility payloads and events that are still documented for migration. Deprecated events, fields, and payload variants will be removed incrementally. There is no single announced removal date unless stated for a specific item. Removed events are not deprecated compatibility payloads and are not included as payload references.

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).

Status	Deprecated
Type	Event
Available on	Booking site
Flow	Legacy availability listings
Replacement guidance	Use `view_item_list` with `ecommerce.items[]`.

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

Parameter	Sample	Presence	Type	Description
`item_list_id`	`availability_search`	if available	ga4	Legacy list id. Source: CMS availability search list id.
`item_list_name`	`Availability search`	if available	ga4	Legacy list name. Source: CMS availability search list name.
`items`	`[...]`	if available	custom	Legacy items array (top-level). Includes park_id/park_name and per-item currency.

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}]});

view_item

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

Status	Deprecated
Type	Event
Available on	Booking site
Flow	Legacy availability detail
Replacement guidance	Use `view_item` with `ecommerce.items[]`.

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

Parameter	Sample	Presence	Type	Description
`items`	`[...]`	if available	custom	Legacy items array (top-level). Includes park_id/park_name and per-item currency.

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"}]});

add_to_cart

Legacy add_to_cart payload (pre-GA4 ecommerce structure).

Status	Deprecated
Type	Event
Available on	Booking site
Flow	Legacy booking cart (add)
Replacement guidance	Use `add_to_cart` with `ecommerce.items[]`.

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

Parameter	Sample	Presence	Type	Status	Description
`currency`	`EUR`	if available	ga4	Deprecated	Legacy top-level currency.
`value`	`350`	if available	ga4	Deprecated	Legacy top-level value.
`items`	`[...]`	if available	custom	Deprecated	Legacy items array (top-level). CMS only sent item_id for rentable types; PMS used A/C/P prefixes.

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"}]});

remove_from_cart

Legacy remove_from_cart payload (pre-GA4 ecommerce structure).

Status	Deprecated
Type	Event
Available on	Booking site
Flow	Legacy booking cart (remove)
Replacement guidance	Use `remove_from_cart` with `ecommerce.items[]`.

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

Parameter	Sample	Presence	Type	Description
`currency`	`EUR`	if available	ga4	Legacy top-level currency.
`value`	`350`	if available	ga4	Legacy top-level value.
`items`	`[...]`	if available	custom	Legacy items array (top-level). CMS only sent item_id for rentable types; PMS used A/C/P prefixes.

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"}]});

select_promotion

Legacy CMS select_promotion payload (items at top level).

Status	Deprecated
Type	Event
Available on	Sales site, Booking site
Flow	Legacy promotion click
Replacement guidance	Use `select_promotion`.

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

Parameter	Sample	Presence	Type	Description
`items`	`[...]`	if available	custom	Legacy items array for the selected promotion.

Sample data layer snippet

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

search

Legacy CMS search payload (search object with result_count).

Status	Deprecated
Type	Event
Available on	Sales site, Booking site
Flow	Legacy site search
Replacement guidance	Use `search` with top-level `search_term`.

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

Replaced by GA4 search with the search_term parameter.

Top-level parameters

Parameter	Sample	Presence	Type	Description
`search`	`{...}`	if available	custom	Legacy search object with query and result_count.

Sample data layer snippet

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

productImpression

Legacy UA product impressions payload.

Status	Deprecated
Type	Event
Available on	Booking site
Flow	Legacy rentable impressions
Replacement guidance	Use `view_item_list` with `ecommerce.items[]`.

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

Top-level parameters

Parameter	Sample	Presence	Type	Description
`ecommerce`	`{...}`	if available	custom	Legacy ecommerce.impressions payload.

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}]}});

productDetail

Legacy UA product detail payload.

Status	Deprecated
Type	Event
Available on	Booking site
Flow	Legacy rentable detail
Replacement guidance	Use `view_item` with `ecommerce.items[]`.

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

Top-level parameters

Parameter	Sample	Presence	Type	Description
`ecommerce`	`{...}`	if available	custom	Legacy ecommerce.detail.products payload.

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"}]}}});

promotionClick

Legacy UA promotion click payload.

Status	Deprecated
Type	Event
Available on	Sales site, Booking site
Flow	Legacy promotion click
Replacement guidance	Use `select_promotion`.

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

Top-level parameters

Parameter	Sample	Presence	Type	Description
`ecommerce`	`{...}`	if available	custom	Legacy ecommerce.promoClick payload.

Sample data layer snippet

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

propertyDetail

Legacy CMS property detail payload.

Status	Deprecated
Type	Event
Available on	Sales site
Flow	Legacy sales property detail
Replacement guidance	Use `view_item` if the page represents a property/rentable detail; otherwise there is no direct ecommerce replacement.

Deprecated CMS payload for sales module property detail impressions.

Top-level parameters

Parameter	Sample	Presence	Type	Description
`ecommerce`	`{...}`	if available	custom	Legacy ecommerce.detail.products payload for property details.

Sample data layer snippet

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

formSubmit

Legacy CMS formSubmit payload (form_submit object).

Status	Deprecated
Type	Event
Available on	Sales site
Flow	Legacy sales form submit
Replacement guidance	Use `form_submit`.

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

Parameter	Sample	Presence	Type	Description
`form_submit`	`{...}`	if available	custom	Legacy form_submit object with dynamic fields.

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"}});

view_price_information

Legacy CMS view_price_information payload.

Status	Deprecated
Type	Event
Available on	Booking site
Portals	Checkout portal
Flow	Legacy checkout price information
Replacement guidance	No direct replacement. Use `view_item` when the page represents a rentable detail.

Deprecated CMS payload used on reservation detail pricing screens.

Top-level parameters

Parameter	Sample	Presence	Type	Description
`item`	`{...}`	if available	custom	Legacy item object for price information.

Sample data layer snippet

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

visit_checkout_step

Legacy checkout step payload from the old checkout portal.

Status	Deprecated
Type	Event
Available on	Booking site
Portals	Checkout portal
Flow	Legacy checkout portal step
Replacement guidance	Use step-specific checkout events such as `begin_checkout`, `add_payment_info`, and/or `checkout_progress`.

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

Replaced by checkout-step events such as begin_checkout, add_payment_info, and checkout_progress.

Top-level parameters

Parameter	Sample	Presence	Type	Description
`ecommerce`	`{...}`	if available	custom	Legacy ecommerce payload with step metadata and customer fields.

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"}]}});

select_amenity

Legacy amenity selection payload from checkout portal.

Status	Deprecated
Type	Event
Available on	Booking site
Portals	Checkout portal
Flow	Legacy amenity add
Replacement guidance	Use `add_to_cart` with `ecommerce.items[]`.

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

Replaced by GA4 add_to_cart with amenity items.

Top-level parameters

Parameter	Sample	Presence	Type	Description
`ecommerce`	`{...}`	if available	custom	Legacy ecommerce.items payload for selected amenities.

Sample data layer snippet

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

deselect_amenity

Legacy amenity deselection payload from checkout portal.

Status	Deprecated
Type	Event
Available on	Booking site
Portals	Checkout portal
Flow	Legacy amenity remove
Replacement guidance	Use `remove_from_cart` with `ecommerce.items[]`.

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

Replaced by GA4 remove_from_cart with amenity items.

Top-level parameters

Parameter	Sample	Presence	Type	Description
`ecommerce`	`{...}`	if available	custom	Legacy ecommerce.items payload for deselected amenities.

Sample data layer snippet

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

ga4option

Legacy GA4 option payload used during migration.

Status	Deprecated
Type	Event
Available on	Booking site
Portals	Checkout portal
Flow	Legacy checkout option
Replacement guidance	No supported replacement event is documented for option booking creation.

Deprecated GA4 option payload emitted during the checkout portal migration.

No supported replacement event is documented while option lead events are not part of the supported schema.

Top-level parameters

Parameter	Sample	Presence	Type	Description
`ecommerce`	`{...}`	if available	custom	Legacy GA4 ecommerce payload with prefixed item ids.

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"}]}});

ga4optionConfirm

Legacy GA4 option confirmation payload used during migration.

Status	Deprecated
Type	Event
Available on	Booking site
Portals	Checkout portal
Flow	Legacy checkout option confirmation
Replacement guidance	No supported replacement event is documented for option booking conversion.

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

No supported replacement event is documented while option conversion events are not part of the supported schema.

Top-level parameters

Parameter	Sample	Presence	Type	Description
`ecommerce`	`{...}`	if available	custom	Legacy GA4 ecommerce payload with prefixed item ids.

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"}]}});

purchase

Legacy hybrid purchase payload (GA4 + UA fields).

Status	Deprecated
Type	Event
Available on	Booking site
Flow	Legacy checkout purchase
Replacement guidance	Use `purchase` with the standard `ecommerce` purchase payload.

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

Parameter	Sample	Presence	Type	Description
`ecommerce`	`{...}`	if available	custom	Legacy hybrid ecommerce payload.

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"}});

checkout

Legacy UA checkout step payload.

Status	Deprecated
Type	Event
Available on	Booking site
Portals	Checkout portal
Flow	Legacy checkout step
Replacement guidance	Use step-specific checkout events such as `begin_checkout`, `add_payment_info`, and/or `checkout_progress`.

Deprecated UA checkout event emitted by the old checkout portal.

Top-level parameters

Parameter	Sample	Presence	Type	Description
`ecommerce`	`{...}`	if available	custom	Legacy UA checkout action payload.

Sample data layer snippet

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

addToCart

Legacy UA addToCart payload from old checkout portal.

Status	Deprecated
Type	Event
Available on	Booking site
Portals	Checkout portal
Flow	Legacy checkout add-to-cart
Replacement guidance	Use `add_to_cart` with `ecommerce.items[]`.

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

Top-level parameters

Parameter	Sample	Presence	Type	Status	Description
`ecommerce`	`{...}`	if available	custom	Deprecated	Legacy UA add-to-cart payload.

Sample data layer snippet

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

option

Legacy UA option payload for optional bookings.

Status	Deprecated
Type	Event
Available on	Booking site
Portals	Checkout portal
Flow	Legacy option booking
Replacement guidance	No supported replacement event is documented for option booking creation or conversion.

Deprecated UA option event emitted for bookings created as options.

Top-level parameters

Parameter	Sample	Presence	Type	Description
`ecommerce`	`{...}`	if available	custom	Legacy UA option payload.

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"}]}}});

failed_payment

Legacy failed_payment payload nested under ecommerce.

Status	Deprecated
Type	Event
Available on	Booking site
Flow	Legacy payment failure
Replacement guidance	No supported replacement event is documented for failed payments.

Deprecated checkout portal payload that nested failure details under ecommerce.

No supported replacement event is documented for failed payments.

Top-level parameters

Parameter	Sample	Presence	Type	Description
`ecommerce`	`{...}`	if available	custom	Legacy failed payment ecommerce payload.

Sample data layer snippet

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

hrental_home

Legacy remarketing object for hotel_rental home pages.

Status	Deprecated
Type	Data layer object
Available on	Booking site
Flow	Legacy hotel_rental home remarketing
Replacement guidance	Use Google Ads dynamic remarketing parameters from `ecommerce.items[]`; there is no same-name replacement.

Deprecated data layer object for Google Ads hotel_rental remarketing.

Object fields

Parameter	Sample	Presence	Type	Description
`hrental_pagetype`	`home`	if available	custom	Page type for remarketing.

Sample data layer snippet

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

hrental_home_subsite

Legacy remarketing object for hotel_rental park home pages.

Status	Deprecated
Type	Data layer object
Available on	Booking site
Flow	Legacy hotel_rental park home remarketing
Replacement guidance	Use Google Ads dynamic remarketing parameters from `ecommerce.items[]`; there is no same-name replacement.

Deprecated data layer object for Google Ads hotel_rental remarketing.

Object fields

Parameter	Sample	Presence	Type	Description
`hrental_pagetype`	`park-home`	if available	custom	Page type for remarketing.
`park_name`	`Park name`	if available	custom	Park name for remarketing.
`park_id`	`123`	if available	custom	Park id for remarketing.
`country`	`Netherlands`	if available	custom	Park country.
`region`	`Twente`	if available	custom	Park region.
`city`	`Enschede`	if available	custom	Park city.

Sample data layer snippet

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

hrental_searchresults

Legacy remarketing object for hotel_rental search results.

Status	Deprecated
Type	Data layer object
Available on	Booking site
Flow	Legacy hotel_rental search results remarketing
Replacement guidance	Use Google Ads dynamic remarketing parameters from `ecommerce.items[]`; there is no same-name replacement.

Deprecated data layer object for Google Ads hotel_rental remarketing.

Object fields

Parameter	Sample	Presence	Type	Description
`hrental_pagetype`	`searchresults`	if available	custom	Page type for remarketing.

Sample data layer snippet

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

hrental_offerdetail

Legacy remarketing object for hotel_rental offer detail pages.

Status	Deprecated
Type	Data layer object
Available on	Booking site
Flow	Legacy hotel_rental offer detail remarketing
Replacement guidance	Use Google Ads dynamic remarketing parameters from `ecommerce.items[]`; there is no same-name replacement.

Deprecated data layer object for Google Ads hotel_rental remarketing.

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

Object fields

Parameter	Sample	Presence	Type	Description
`event`	`gtm.load`	if available	custom	Legacy event key emitted alongside hrental fields.
`hrental_pagetype`	`offerdetail`	if available	custom	Page type for remarketing.
`hrental_id`	`123`	if available	custom	Rentable type id.
`hrental_park_id`	`456`	if available	custom	Park id.
`hrental_park_name`	`Park name`	if available	custom	Park name.
`hrental_startdate`	`2026-02-20`	if available	custom	Start date.
`hrental_enddate`	`2026-02-22`	if available	custom	End date.
`hrental_length_of_stay`	`2`	if available	custom	Length of stay in nights.
`hrental_totalvalue`	`120.00`	if available	custom	Total value for the stay.
`hrental_city`	`Enschede`	if available	custom	City.
`hrental_region`	`Twente`	if available	custom	Region.
`hrental_country`	`Netherlands`	if available	custom	Country.

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"});

hrental_conversion

Legacy remarketing conversion object for hotel_rental.

Status	Deprecated
Type	Data layer object
Available on	Booking site
Flow	Legacy hotel_rental conversion
Replacement guidance	Use Google Ads dynamic remarketing parameters from `ecommerce.items[]`; there is no same-name replacement.

Deprecated data layer object emitted during old checkout conversion flows.

Object fields

Parameter	Sample	Presence	Type	Description
`hrental_id`	`123`	if available	custom	Rentable type id.
`hrental_park_id`	`456`	if available	custom	Park id.
`hrental_park_name`	`Park name`	if available	custom	Park name.
`hrental_pagetype`	`conversion`	if available	custom	Page type for conversion.
`hrental_startdate`	`2026-02-20`	if available	custom	Start date.
`hrental_enddate`	`2026-02-22`	if available	custom	End date.
`hrental_length_of_stay`	`2`	if available	custom	Length of stay in nights.
`hrental_totalvalue`	`350.00`	if available	custom	Total value for the stay.
`item_country`	`Netherlands`	if available	custom	Country.
`item_region`	`Twente`	if available	custom	Region.
`item_city`	`Enschede`	if available	custom	City.

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"});

return_from_payment

Legacy payment portal return payload.

Status	Deprecated
Type	Data layer object
Available on	Booking site
Flow	Legacy payment return
Replacement guidance	Use `purchase` for successful payment returns. No supported replacement event is documented for failed payment returns.

Deprecated payment portal payload emitted after returning from payment.

Object fields

Parameter	Sample	Presence	Type	Description
`reservation`	`{...}`	if available	custom	Legacy reservation object with return-from-payment status.

Sample data layer snippet

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