--- title: Google Tag Manager Integration url: https://guestcentric-help.guestcentric.net/en/integrating-guestcentric-datalayer-with-google-tag-manager-gtm language: en is_homepage: false hotel: GuestCentric Support Page city: Alges country: Portugal phone: "+351 21 036-0906" email: support@guestcentric.com --- # GuestCentric Support Page menutoggle [Attend Guestcentric Webinar](mailto:support@guestcentric.com?subject=Attend Guestcentric Webinar) # Google Tag Manager Integration [HOME](https://help.guestcentric.com/hotel-overview.html) > [Google Analytics and Tag Manager](https://help.guestcentric.com/integration-ga4-and-gtm) > Integrating Guestcentric DataLayer with Google Tag Manager (GTM) This guide outlines the standard DataLayer events and structure used in the hotel booking engine for integration with Google Tag Manager. **Google Tag Manager (GTM) is a third-party tool provided by Google.** Our team provides this DataLayer documentation as a reference guide only. We do not offer direct implementation, configuration, or troubleshooting support for Google Tag Manager tags, triggers, or variables. For GTM-specific setup and technical assistance, please refer to Google's official GTM documentation and support channels. ## E-commerce Events The booking process is tracked through a sequence of three events: **1. Begin check-out event** **- Event name:**begin_checkout**- Trigger:**When the user starts the checkout process **- Purpose:**Standard Ecommerce tracking **2. Add-payment event** **- Event name:**add_payment_info**- Trigger:**When the user adds payment information**- Purpose:**Standard Ecommerce tracking **3. Purchased Event (GA4 Enhanced Ecommerce) - Event name:** purchase**- Trigger:** Fired separately after booking completion**- Purpose:** GA4 Enhanced Ecommerce compatibility --- ### Key DataLayer Objects (Booking Completion: Purchased Event)  The**purchased event******provides a comprehensive data structure for successful reservations, organized into specific objects: 1. Reservation Details (gcReservation): This object contains core booking information - **code**: Hotel reservation code (e.g., 'BOOKING_12345') - **propertyName**: Hotel name (e.g., 'Grand Hotel') - **offer**: Room type rate plan name (e.g., 'Deluxe Room - Best Available Rate' - **checkin/checkOut**: Dates in YYYY-MM-DD format - **nights**: Number of nights calculated from dates - **adults/children**: Number of guests - **addons**: Array of addon objects, including name and netPriceTotal 2. Price Details (gcPrice): All monetary values are in the currency specified in the currency field - **currency:** Currency code (e.g., 'USD') - **total:** Total price including taxes and fees (e.g., $949.97) - **net:** Net price before taxes/fees (e.g., $849.97) - **taxes / fees:** Total amounts for taxes and fees - **perUnit:** Price per unit (room) 3. Guest Information (gcGuest): Contains primary guest details - **name:** Full name (e.g., 'John Doe') - **city, zip, country:** Location information - **payment:** Payment method name (e.g., 'Visa') 4. Metadata & UTM Parameters: Includes system information and marketing campaign details - **gcReferer:** Booking referrer URL (e.g., 'https://google.com') - **gcChannelKey:** Booking channel identifier (e.g., 'direct_booking') - **utm_source, utm_medium, utm_campaign, utm_content**: Standard UTM parameters captured from the current route query --- **Data object definitions**: [Click here](https://drive.google.com/drive/u/0/folders/1PuK9dbV41echEPcEFlIqNY__VP4di1Ir) (The PDF is located in a shared drive, and authorization is required to access it) --- #### Implementation Notes - All montery values are in the currency specified in the currencey field - Dates are in YYYY-MM-DD format - The nights value is automatically calculated from check-in/check-out dates - transactionProducts includes both rooms and addons items - UTM parameters are capture from the current route query parameters - **Events only fire when analytics cookies are accepted by the user** --- ## Do you have any other questions regarding GTM tracking? #### Contact our support, and we will happily to help support@guestcentric.com - [Self Service Portal](http://support.guestcentric.com) - [Accounting - Billing Information](https://www.guestcentric.com/payment-methods) - [Contact Us](https://www.guestcentric.com/contact-us) - [Log-In](https://login-emea01.guestcentric.net) [Guestcentric](//www.guestcentric.com/) - [About us](//www.guestcentric.com/about-us/) - [Blog](//www.guestcentric.com/blog/) - [Billing Information](//www.guestcentric.com/billing-information/) - [Terms of use](//www.guestcentric.com/terms-of-use/) - [Newsletter Sign Up](//www.guestcentric.com/contact-us/newsletter-signup/) **UNITED STATES** **San Diego** 7752 Fay Ave, Suite L La Jolla, San Diego, CA 92037 T. +1 (858) 900 2400 **New York** 104 West 40th Street, Suite 400 New York, NY 10018 T. +1 (858) 900 2400 **PORTUGAL** **Lisbon** Avenida Jose Gomes Ferreira 9 Miraflores 1495-139 Lisboa T. (+351) 21 036 0906 --- ## GuestCentric Support Page **Address:** Avenida Jose Gomes Ferreira 9 Miraflores, Alges, 1495-139, Portugal **Phone:** +351 21 036-0906 **Email:** [support@guestcentric.com](mailto:support@guestcentric.com)