These case studies reflect real QA responsibilities across enterprise sales, payment, inventory, and financial workflows. Product names, identifiers, and selected implementation details are generalized to protect confidential information.

Payment & Order Control

Invoice Overdue & Sales Order Blocking

Payment collection, overdue validation, automatic blocking, auto-cancellation, and outstanding-invoice reporting.

Business Rule Validation

Dropship Sales & Inventory Rules

Cross-module validation of restricted business-model behavior in orders, payments, stock, and movements.

Backend Transactions

Preorder, Pricing & Credit Limit Validation

Preorder workflows, tax and discount calculations, payment creation, printouts, and customer credit controls.

End-to-End Sales Journey

Next-Generation Sales Operations Application

Sales visits, collections, stock movements, returns, reports, document printing, and available-credit workflows.