Real-Time Multi-Branch Inventory Sync & Instant Payment Checkout
How WaapCoders synchronised stock between counter POS terminals and an online storefront for SureshMart, with UPI checkout and WhatsApp order alerts.
The client
- Client
- SureshMart
- Industry
- Retail & Digital Commerce
- What we built
- Retail & e-commerce platform
The challenge
A rapidly growing supermarket and retail chain faced stock drift between physical counter POS terminals and their online storefront, causing order delays and checkout drops.
The solution
Engineered an event-driven inventory synchronization engine with optimistic lock management, instant UPI deep-link checkout, and automated WhatsApp order notifications.
How we implemented it
Event-driven inventory synchronisation
Stock changes at the counter POS and the online storefront are synchronised through an event-driven engine.
Optimistic lock management
Conflicting stock updates are detected and resolved so shelves and storefront stay in step.
Instant UPI deep-link checkout
Customers pay through UPI deep links, with Razorpay handling the payment flow.
Automated WhatsApp order notifications
Customers receive order updates on WhatsApp without manual follow-up.
The results
“Our live retail and grocery storefront handles heavy daily traffic surges without a hitch. The system simply works without administrative intervention.”