Client Overview BeatWave Events runs underground DJ nights across Switzerland. With hundreds of new fan sign-ups each week, the team needed a way to capture data automatically, tag subscribers by genre/city, and send personalized event reminders at the right time. Challenges Manual copy-paste of sign-ups into Mailchimp (1–2 hrs/day) Errors in tagging by genre or city Event reminders often late or mistimed Risk of sending to unsubscribed or disengaged fans Our Solution We built a Zapier workflow with custom Python steps that: Captures sign-ups via Typeform Enriches data (genre scores, normalized city names, email validation) Subscribes/updates fans in Mailchimp Waits until 48 hours before the next event in their city Builds and sends personalized event alerts via Mailchimp Transactional Filters out unsubscribes and disengaged fans Business Impact Hands-off subscriber management: no more manual imports Personalized, timely alerts: emails sent exactly 48h before events → +35% open rates Higher attendance: weekend turnout improved by 22% Scalable system: easily adapts to new cities, genres, or events Conclusion With Zapier, Mailchimp, and Python, BeatWave Events now has a fully automated funnel that captures new fans, enriches their data, and delivers event reminders at the perfect time—helping them grow their audience and pack dancefloors every weekend.
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