WhatsApp appointments on top of a scheduling system from 1998
Patients book appointments over WhatsApp and the booking is also recorded in the old Admissions system, without creating a second schedule.
How the data flows
WhatsApp booking
Web backend
Agent on the PC
Admissions VB6
2systems, one schedule
Client
Unimed
Industry
Medical center
Where
Argentina
Integrations
WhatsApp, Admissions VB6
The context
A medical center that gets patients over WhatsApp every day, but whose official schedule lives in Admissions: a Visual Basic 6 system on a Windows 7 PC. The staff had to keep working the way they always had.
The problem
The bot had to offer real appointments without replacing that system or creating a parallel schedule that would drift out of sync. Two schedules that don't talk to each other are worse than no bot.
What we built
01The bot talks on WhatsApp and books against a web backend.
02An agent installed on the clinic's PC syncs every change with Admissions in both directions.
03The backend adds deterministic locks to prevent duplicate appointments, wrong tests and booking loops.
What changed
Patients book over WhatsApp against real availability.
Staff keep using their usual system, with both schedules coordinated automatically.
Stack
Next.js 15React 19Neonn8nNode.jsVercel
Connects with
WhatsAppAdmissions VB6
Design something similar for your operation
No system is copied and pasted: what works here came from how this business runs. Tell us about yours and we will see what fits.