Case Study

Scaling Butler Service with WhatsApp

Alvaro Villardon

chatlyn · September 21, 2026

How The St. Regis Le Morne enables 30 butlers to deliver seamless, personal service through a single WhatsApp number — powered by chatlyn.

Why it matters: Most hotels use chatlyn to deploy AI. The St. Regis Le Morne deliberately chose the opposite, they automate exactly one message, and every reply after that is hand-written by a butler. The result: a < 5-minute average response time across 6,700+ guest conversations, 24/7, with zero AI.

The St. Regis Le Morne, an ultra-luxury Marriott property in Mauritius with 172 suites and a 30-butler team, uses chatlyn to run guest messaging over a single WhatsApp Business number. WhatsApp Business only allows 5 simultaneous device logins, which made it impossible for 30 butlers working in shifts to share one number directly. chatlyn sits on top of WhatsApp as a multi-user inbox: every butler logs in from the chatlyn mobile app or browser, messages are auto-routed to the butler assigned to that suite, and internal notes carry context across shift handoffs. One automated message fires when a guest scans an in-suite QR code, it greets them and asks for their suite number, which triggers the routing. From that point on, every reply is written personally by the butler. No templates, no AI.

Top 3 Core Objectives: Give 30 butlers a shared way to serve 172 suites over WhatsApp, without losing the personal, hand-written service the St. Regis brand is known for.

Scale WhatsApp beyond device: WhatsApp Business caps logins at 5 devices, which made it impossible for 30 butlers working in shifts to share one number. The resort needed every butler to have simultaneous access from their own phone or browser.
Route every message correctly: With butlers assigned by suite, incoming messages had to reach the right person automatically, and stay in context during shift handoffs so nothing slipped through.
Keep every reply personal: The St. Regis butler tradition dates back to 1904, and the resort wanted technology to support human service, not replace it. The goal was to automate only the initial welcome trigger and leave every subsequent message to be hand-written by the assigned butler.

"chatlyn redefines communication by weaving intuitive technology into the timeless craftsmanship of the Butler Service at The St. Regis Le Morne Resort, Mauritius. Each interaction becomes smoother, faster, and impeccably curated — an elevated standard befitting our most discerning luminaries."

Christophe Lai Wai

Director of Quality & Projects, The St. Regis Le Morne Resort, Mauritius

👍 Director of Quality & Projects, The St. Regis Le Morne Resort, Mauritius Christophe Lai Wai said that chatlyn enhances the St. Regis Le Morne's butler service with technology that makes every guest interaction faster and more polished.:

"chatlyn redefines communication by weaving intuitive technology into the timeless craftsmanship of the Butler Service at The St. Regis Le Morne Resort, Mauritius. Each interaction becomes smoother, faster, and impeccably curated — an elevated standard befitting our most discerning luminaries."

⚖️ The selection process: During their research process, Christophe Lai Wai evaluated chatlyn's product differentiators, customer support, and holistic value as a strategic partner and ultimately decided that chatlyn was the best fit solution:

Director of Quality & Projects, The St. Regis Le Morne Resort, Mauritius Christophe Lai Wai said, about their decision: "We needed a way for 30 butlers to serve guests through one WhatsApp number without losing the personal touch. chatlyn was the only platform that let us scale the team without scaling the technology in front of the guest."

📈 The results: Since deploying chatlyn in early 2024, the St. Regis Le Morne has handled 6,700+ guest conversations and exchanged over 464,000 WhatsApp messages, all with an average response time under 5 minutes, and every reply hand-written by a butler.

6,700+ guest conversations handled across 172 suites, all through a single shared WhatsApp number.
464,726 messages exchanged between guests and butlers, with full routing, continuity across shifts, and zero device-login bottlenecks.
Under 5-minute average response time, 24/7, achieved entirely by human butlers with no AI in the loop, across 30+ languages.