Reportable Data

What actually pulls through to GA4 - customers frequently ask which fields actually reach GA4 as reportable data once a booking completes. To answer this definitively, we ran a live end-to-end test on the guest-facing booking journey on 10 July 2026, rather than relying solely on the schema outlined in the Data Schema. The results are confirmed below.

Reportable Data Topics

Data
Topic Linked to Headings

Data

Field	Pulls Through	Detail
Site / Hotel Name	✓	Sent as affiliation on the GA4 item.
Rate Plan Name	✓	Sent as item_variant on the GA4 item.
Additional Purchase (Upsell) Names	✕	Not yet sent as separate GA4 items — see Section 7 for how to achieve this.

Copy

Example from Live Test

ecommerce: { 

  currency: "GBP", value: "182.00", coupon: null, 

  items: [{ 

    item_name:    "In House King Superior", 

    item_variant: "In House Bed & Breakfast", 

    affiliation:  "The Carpenters Arms - Provenance Inns", 

    check_in: "2026-07-22", check_out: "2026-07-23", 

    price: "182.00", quantity: 1, index: 1 

  }] 

}

Today, this single item carries the full booking value (£182.00) — room, rate plan, and any upsells added (here, Dog Charge £20.00 and House White Wine £25.00) combined. Section 7 sets out the schema to use if you want each upsell to report as its own line in GA4