A travel agency needed to fill flights through WhatsApp on a tiny budget, in a low-margin market where cost per conversation decides whether the campaign works at all.
Margins were thin and the budget was tiny. In this market the cost per WhatsApp conversation decides whether a travel campaign is viable at all.
I built and continuously tested more than a dozen ad sets, optimising hard for the lowest cost per conversation, and pushed it as low as $0.06 on the strongest ad sets while still scaling volume.
12,351 WhatsApp conversations from about $1,063 in spend at a $0.09 average, driving roughly $125K in tracked flight bookings across April to July 2026.