Executive Summary: Behind the scenes of engineering a WhatsApp-centric Customer Relationship Management (CRM) platform.

Traditional CRMs focus on email and phone calls. **WhatsMeet** was born from the need to manage sales pipelines entirely via WhatsApp. ### The Data Model Building a CRM requires a flexible data model. We used polymorphic relationships in Laravel to link contacts to different entities (Deals, Organizations, Support Tickets). ### The Unified Inbox To sync real-time WhatsApp messages to the CRM interface, we utilized **Laravel Reverb (WebSockets)**: 1. Webhook receives message from Meta. 2. Job saves message to MySQL. 3. Event is broadcasted to the frontend. 4. Vue.js/Inertia frontend updates the chat UI instantly. ### Security & Multi-Tenancy Every API endpoint in WhatsMeet is protected by Sanctum tokens and scoped strictly to the authenticated Tenant's workspace. Missing global scopes is the #1 cause of data leaks in SaaS CRMs.