Project Name: QuickSell – WhatsApp Automation SaaS Platform We are building a multi-tenant SaaS platform that helps small and local businesses automate their WhatsApp communication. The product must use official WhatsApp Cloud API (Meta) and OpenAI API for intelligent auto-replies. No web automation, no Selenium, no scraping. This is a production-grade software. Scope of Milestone-1 (First Phase) Development requirements: WhatsApp Cloud API integration Webhook setup and verification Receive incoming messages Automated reply logic Bot automation rules Greeting response 3 menu keyword based replies AI fallback using OpenAI API Option to disable AI replies Business dashboard Authentication (JWT) Business profile setup Bot Settings CRUD View incoming and outgoing message logs Contacts auto-capture Save customer phone numbers when they message first time Manual add contacts option Usage tracking Monthly count of sent messages, contacts stored, AI requests Deployment Live deployment on Vercel Code must be pushed to our GitHub repository Documentation Setup instructions Environment variable explanation Required Technology Stack Next.js + React (Frontend + API Routes) Node.js PostgreSQL + Prisma ORM WhatsApp Cloud API (Meta Business Platform) OpenAI API GitHub (Code versioning) Deliverable Quality Requirements Clean file structure and reusable modules Multi-tenant structure (one backend, multiple business accounts) Secure token handling and database access Clear comments in codebase Daily progress updates Proposal Requirements Your proposal must include: Real experience with WhatsApp Cloud API Screenshots or code samples highly preferred GitHub or portfolio links Estimated timeline for Milestone-1 Fixed price cost per milestone Confirmation that you can do a short trial task Proposals without these points will be rejected. Budget Milestone-1 Budget Range: ₹15,000 – ₹25,000 (fixed price, not hourly) High performance will lead to long-term feature development work.