The challenge
Four booking websites, two brands and over 200 destinations — from coastal sites to mountain vistas to desert skies. Guests browse across locations and dates before committing, and abandonment was spread thinly across an enormous surface area rather than concentrated anywhere a manual process could catch it.
What changed
One integration pattern, four sites
Each booking website connects the same way, capturing the visitor's abandoned booking data and injecting it dynamically into the reminders.
Reminders that name the destination
A guest abandoning a lakeside site in one state and one abandoning a desert resort in another get materially different emails, because the booking data drives the content.
Three timed emails per site
The same three-email sequence runs on each of the four websites, with results reported per site — $157K, $123K, $47K and $7K across the month.
The results
$334K
recovered across four booking sites
10%
average booking recovery rate
52%
average email open rate
Measured over a 30-day window across four booking websites. Customer anonymized at their request. Return on investment compares recovered revenue to CartStack subscription cost only.
