Olaif Purchase
Self-service B2B & distributor ordering portal with per-customer pricing, instant Xendit payments, AI purchase-order capture and real-time Zoho Books sync.
Pustaka
One platform that retired two aging systems for a nationwide faith-based bookstore & publisher — point of sale, double-entry accounting, multi-warehouse inventory, and a self-running book-subscription engine, all in a single clean workspace.
Run the whole bookstore without juggling systems.
Pustaka replaced a legacy MS Access point-of-sale and a separate desktop accounting package with one connected platform. Every sale, subscription, payment, and stock movement now flows into the same ledger — in real time.
Built for busy retail counters, finance staff, and subscription coordinators, Pustaka turns daily operations into a single source of truth: accurate books, live stock, and happier customers — without the nightly manual reconciliation.
Note: This case study describes a real production platform, but every identifying detail has been fictionalised for public display — the client and product are presented under the invented name "Pustaka", all customer names, staff names, book titles, invoice numbers, and figures in the mockups are made up, and headline metrics are rounded to non-identifying ballparks.
Product highlights
Point of sale, built for the counter
Barcode-ready checkout with name typeahead, cash or credit in one flow, backorders when stock runs low, and an instant 58 mm thermal receipt.
Subscriptions that bill themselves
Publish a monthly book package and Pustaka auto-charges every subscriber from their deposit — and politely waits when a balance runs short.
Books that always balance
Every transaction posts a balanced double-entry journal automatically, so the profit & loss and balance sheet are always live and audit-ready.
Feature breakdown
01
Point of Sale & Invoicing
A cashier-grade POS with barcode scanning, name typeahead, and an editable grand total. Sell on cash or credit — even walk-ins — allow backorders when stock runs low, then print a 58 mm thermal receipt or a full A4 invoice. Returns reverse stock, balances, and journals in a single click.
02
Self-Running Subscription Engine
The heart of the platform. Publish a monthly book package and every active subscriber is billed automatically from their deposit balance. Short on funds? Pustaka raises a pending charge, notifies the customer on WhatsApp, and settles it the moment they top up — never overdrawing an account. Print bulk address labels and package manifests in a click.
03
Accounting & Multi-Warehouse Inventory
A real 39-account chart of accounts with cash vouchers, general ledger, profit & loss, balance sheet, AR aging, and monthly period close (with undo). Inventory spans multiple warehouses and racks with weighted-average costing, stock opname, and automatic cost-of-goods posting on every sale.
Two legacy systems, retired. One platform, live.
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