Terra Kaffe ran three off-the-shelf Klaviyo flows alongside a behavioral vendor layer. The flows sent the most and earned the least per message — volume without intent — while the added vendor lifted efficiency but not enough to change the ceiling on what abandonment recovery could return.
Relvino's checkout-abandonment series outperformed both incumbents at once: more than 2X the revenue of the brand's three standard Klaviyo flows, on roughly 30% fewer emails, and 60% more revenue than the behavioral vendor in a fraction of its running window. Key highlights:
The result came from a first-pass agent configuration, not a tuned one — the efficiency gain is the floor, not the ceiling.