Used-Devices Purchase Management System
Overview
A system that documents used-device purchases and sends the customer an automatic confirmation via WhatsApp.
Business Context
Used-device purchasing without central documentation creates the potential for later objections and disputes.
The Problem
Undocumented purchases can later turn into objections and disputes.
Objective
Document every purchase electronically and send the customer an automatic confirmation via WhatsApp.
My Role
- Requirements analysis
- Database design
- REST APIs
- Frontend
- WhatsApp API
- Webhooks
- Permissions
- Testing
The Solution
Electronic recording of each purchase with automatic confirmation sent to the customer.
Implementation
I analyzed requirements, designed the database, and built REST APIs and the frontend, integrating WhatsApp API, webhooks, permissions, and testing.
Technology
- REST APIs
- WhatsApp API
- Webhooks
- Database
Results
- 100%Full electronic documentation
- Automatic confirmationVia WhatsApp
- 24-hour reminderAutomatic customer follow-up
- Objection detectionRouted to the responsible staff member
Business Impact
Key result
100%
Full electronic documentation
Live Demo
Lessons & Insights
- Documenting the process at the moment it happens is cheaper and safer than trying to prove it after a problem occurs.
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