Automated Invoice & GST Billing System with Laravel + WhatsApp API (Complete Sales Workflow)
Introduction In many retail and distribution businesses, invoices are generated manually after a sale is completed. Staff members calculate totals, apply GST, generate PDFs, and then send confirmations separately through email or WhatsApp. This creates delays, calculation errors, and operational inefficiencies. To solve this, I developed a complete automated sales and invoice management system using […]