Most people don’t give much thought to transactional emails—those confirmation messages you get after making a purchase. But for savvy marketers like the team for a major, Miami-based multi-purpose stadium hosting global sports and entertainment events we recently worked with, these emails are an untapped opportunity to create better customer experiences and drive measurable engagement.
We recently helped this Miami-based enterprise client level up their transactional email game using HubSpot's powerful Transactional Email add-on and the Web Send API. The goal? Automate ticket confirmation emails while giving the marketing team complete creative control—no developers required.
First, we designed a flexible, branded email template directly inside HubSpot.
Rather than hardcoding static content, we built it to accept dynamic, tokenised data—everything from event details to customer names could be injected into the email on send.
Then came the magic: our client used the Transactional Single Send API to trigger the email send whenever a ticket purchase occurred. At the same time, key ticket data was passed along as tokenised parameters, automatically populating the template in real time.
But we didn’t stop there.
Some of those data points were also mapped back to HubSpot contact properties during the send; for example, updating the contact’s lifecycle stage to “Customer.” That meant every transactional interaction also helped enrich customer profiles and fuel future campaigns.
They now had full autonomy to tweak email content, swap out banners, promote upsells, and update CTAs—without ever needing IT to touch a line of code. Combine that with HubSpot’s baked-in tracking (opens, clicks, conversions, even post-click activity on the website), and our client suddenly had a full-funnel view of how their transactional emails were performing.
This approach didn't just improve operational efficiency—it gave our client a smarter, more agile way to stay connected with their customers at a key moment of engagement.
Transactional emails don’t have to be boring or rigid. With the right setup, they can become a powerful part of your marketing engine—delivering value, driving engagement, and making your tech stack work harder.