PriceSmart — e-invoicing microservices across 47 clubs

The problem

PriceSmart's POS operations spread across 47 membership clubs in multiple countries, with limited near-real-time visibility and a hard compliance requirement: electronic invoices emitted by the POS had to reconcile exactly with the tax authority.

The approach

A microservices web portal for near-real-time insights and per-department management, plus support-ticket, documentation and audit tooling.

Architecture

• Microservices on C# / SQL Server with an Angular + Node.js front, surfacing near-real-time data per department.
• An electronic-invoicing reconciliation flow — starting in Costa Rica — matching each invoice emitted by the point of sale against the government tax authority to prove the data crossed perfectly.
• Power BI for reporting and DevOps automation for delivery.

The outcome

• Near-real-time visibility for departments that were previously blind, across 47 clubs.
• Reliable POS ↔ tax-authority e-invoicing reconciliation (Costa Rica first).
• Faster traceability and operational responsiveness.