view_item_list

A user is presented with a list of items.

Status: Upcoming

We measure rentable types (items) being presented to the user for certain dates and a certain price (availability) by sending a view_item_list event with the relevant rentable types in an items array. This event is triggered when a website visitor searches for availabilities by entering information like arrival date, departure date guest group, required amenities, etc.

The same event can be used for sales module listings (properties) by supplying the property items as the list items.

GA4 docs: https://developers.google.com/analytics/devguides/collection/ga4/reference/events?client_type=gtag#view_item_list

Sample data layer snippet

dataLayer.push({ ecommerce: null });  // Clear the previous ecommerce object.  dataLayer.push({  "event": "view_item_list",  "ecommerce": {    "item_list_id": "availability_search",    "item_list_name": "Availability Search",    "currency": "EUR",    "items": [      {        "item_id": "123123",        "item_name": "4-Person Luxury Villa",        "item_brand": "Administration Name",        "item_category": "Accommodation",        "item_category2": "house",        "item_variant": "single_night",        "item_country": "Netherlands",        "item_region": "Twente",        "item_city": "Enschede",        "administration_id": "321321",        "administration_name": "Administration Name",        "coupon": "SUMMER10",        "discount": 25.0,        "price": 350.0,        "quantity": 1,        "start_date": "2026-02-20",        "end_date": "2026-02-22",        "google_business_vertical": "hotel_rental",        "index": 1      }    ]  }});

Top-level objects

Parameter	Sample	Presence	Description
`ecommerce`	`{...} (see below)`	always	Ecommerce payload wrapper for GA4 events.

`ecommerce`

Ecommerce payload wrapper for GA4 events.

Field	Sample	Presence	Description
`item_list_id`	`availability_search`	always	The list ID for the results. Source: Availability/property search list id (availability_search or property_search).
`item_list_name`	`Availability Search`	always	The list name for the results. Source: Availability/property search list name (Availability search or Property search).
`currency`	`EUR`	always	Currency of the items associated with the event, in 3-letter ISO 4217 format. Source: Currency used for totals/items (booking/order/reservation currency; availability/property search uses the active site currency).
`items[]`	`[...] (see below)`	always	Items array for the ecommerce payload.

`ecommerce.items[]`

Items array for the ecommerce payload.

Field	Sample	Presence	Description
`item_id`	`123123`	always	ID of the item. Combine with item_category and item_category2. Source: rentable type id (Accommodation), cost id (Upgrade, Preference), bundle id (Package), or amenity id (Preference with Amenity item_category2). Availability/property search: category or property id. Notes: Legacy checkout portal used prefixed ids (A/C/P).
`item_name`	`4-Person Luxury Villa`	always	The name of the item. Source: rentable type id (Accommodation), cost id (Upgrade, Preference), bundle id (Package), or amenity id (Preference with Amenity item_category2). Availability/property search: localized category/property name.
`item_brand`	`Administration Name`	if available	The localized name of the site. Source: Checkout portal: administration name. Availability/property search: site/brand name shown on the website (can differ from the administration name).
`item_category`	`Accommodation`	always	Top-level item type. `Accommodation` `Upgrade` `Preference` `Package` Source: Checkout portal: `Accommodation` for rentable types, `Upgrade` for extras, `Preference` for amenities/preferences, `Package` for bundles. Availability/property search: `Accommodation`. Notes: Legacy CMS view_item_list used item_category for the segment and did not set item_category2.
`item_category2`	`house`	if available	Semantic segment for accommodations or sub-bucket for extras. Accommodation: `house` `pitch` `room` `berth` `apartment` `other` Extras: `Amenity` `Upgrade` `Package` Source: Checkout portal: accommodation semantic segment or extras bucket. Availability/property search: accommodation semantic segment. Notes: Legacy CMS view_item_list did not include item_category2; legacy checkout portal used extra-specific buckets like SpecificAccommodation.
`item_category3`		if available	PMS extra type for extras only. `tourist_taxes` `cleaning` `parking` Source: Checkout portal extras only: cost extra_type. Not set for accommodations, packages, or availability/property search.
`item_variant`	`single_night`	if available	Stay duration category for the accommodation. `single_night` - 1 night `weekend` - 2-3 nights incl weekend `midweek` - 2-4 nights without weekend `week` - 6-8 nights or 5 nights incl weekend `extended_stay` - 9-13 nights `long_stay` - 14+ nights Source: Checkout portal accommodations and CMS availability items; derived from arrival/departure.
`item_country`	`Netherlands`	if available	The country where the administration is located. Source: Administration country from BEX (shared across checkout portal and availability/property search).
`item_region`	`Twente`	if available	The region where the administration is located. Source: Administration region from BEX (shared across checkout portal and availability/property search).
`item_city`	`Enschede`	if available	The city where the administration is located. Source: Administration city from BEX (shared across checkout portal and availability/property search).
`administration_id`	`321321`	if available	The ID of the administration in BEX PMS. Source: Checkout portal: BEX administration id. Availability/property search: the same BEX administration id (Booking Experts administration mapping). Notes: Renamed from park_id in legacy CMS/PMS payloads.
`administration_name`	`Administration Name`	if available	The name of the administration in BEX PMS. Source: Checkout portal: BEX administration name. Availability/property search: the same BEX administration name (Booking Experts administration mapping). Notes: Renamed from park_name in legacy CMS/PMS payloads.
`coupon`	`SUMMER10`	if available	Coupon applied to the item. Source: Coupon code applied to the reservation or order item (first code, if any).
`discount`	`25.0`	if available	Discount applied to the item. Source: Discount amount for the order item.
`price`	`350.0`	if available	Price for the item line (stay total for accommodation). Source: Availability/property search: price for the stay. Checkout portal: order item unit price; accommodation uses stay total derived from booking total minus upgrades.
`quantity`	`1`	if available	Quantity of the item. Source: Order item quantity; otherwise 1.
`start_date`	`2026-02-20`	if available	The date of arrival for availability. Source: Stay arrival date or availability start date.
`end_date`	`2026-02-22`	if available	The date of departure for availability. Source: Stay departure date or availability end date.
`google_business_vertical`	`hotel_rental`	if available	Google Ads business vertical for dynamic remarketing (examples: "hotel_rental", "retail"). Source: Remarketing business vertical configured globally; not from booking data.
`index`	`1`	if available	The position of the item in the list. Source: Position in the result list (availability/property search only).