How Bigbox went live on Customer.io in 15 days with Hyppo

The brief Bigbox and Hyppo set together was specific, and it wasn't the usual one. Most onboardings are a race to start messaging the full base as fast as possible. Bigbox and Hyppo optimized for something else first: get fully onboarded and technically operational, across every market, in fifteen days.

That meant every integration connected to Customer.io, all five country workspaces built, data syncing correctly, sender domains and phone numbers validated, and the first flow live and checked against the existing system, before anything else got built. The goal was a Customer.io foundation solid enough to build on with confidence, not a quick demo.

The fifteen-day build moved in tight, overlapping stages, all inside Customer.io. The per-country workspace structure is what made that pace possible: a five-market rollout without five separate projects.

Fifteen days after kickoff, Bigbox had a Customer.io setup that was connected, validated and live in production, across all five countries. In the weeks after, the same discipline continued inside the platform: additional country phone numbers validated for WhatsApp one by one, GTM event tracking refined, and real-time event data wired up for the campaigns that came next.

With the foundation live, Hyppo made a deliberate choice: build a focused set of things and get them right, rather than launch broadly and fix issues later. Every template was built in Design Studio, Customer.io's HTML email builder, to a high standard. The work started by replicating what Bigbox already had (buyer onboarding, recipient onboarding, and one-off campaigns for occasions like Mother's Day and Father's Day) so results could be measured against the previous system before anything expanded.

Because every one of the five workspaces runs the same flow library inside Customer.io, an improvement made in one market carries cleanly to the others. Replication became a repeatable process inside the platform rather than five separate builds from scratch.

"Bigbox is a large, mature company that still operates with the hunger and ambition of a startup. Pair that culture and that team with a platform like Customer.io, and you have the conditions to create real impact, fast. That's what made this project move the way it did."

Two months after going live, the work shifted from replication to creation, all built on the Customer.io foundation Hyppo had put in place. The core flows now run across all five countries, and the work in progress targets audiences that never had a strategy of their own.

None of this is outsourced and forgotten. Hyppo works alongside Bigbox's growth function as an extension of the team, inside Customer.io: on integrations, on existing flows, and on everything new. Bigbox brings the growth expertise, Hyppo builds and executes alongside it, and Customer.io is the platform both teams build on.

The goal was never a demo: it was a production foundation to build on with confidence. This is what was live after fifteen days.

The direction from here is deeper impact at every stage of the customer lifecycle: more campaigns, more measurement, more automation and more personalization, tuned to how Bigbox's business actually works. The fifteen-day foundation Hyppo built inside Customer.io is what makes that next phase possible.