Systems for shops, supermarkets & retail chains
You run a supermarket, a group of stores or a growing retail chain, and the tills, the warehouse and the accounts no longer agree. Amwaj Solutions builds custom retail POS systems, or integrates and extends the one you already use, so ZATCA invoicing, branch stock, mada payments and your ERP all work from a single, reliable record.
Every receipt a till prints is a simplified tax invoice, and ZATCA states that a QR code is mandatory on simplified tax invoices. E-invoicing began on 4 December 2021, and the integration phase started on 1 January 2023. Source: ZATCA
ZATCA guidance prohibits invoicing solutions that allow tampering with or deleting issued invoices, multiple invoice sequences, changing the system date and time, or exporting the cryptographic stamp's private key. Returns therefore need a proper credit-note workflow. Source: ZATCA
ZATCA's 25th integration group, announced on 24 July 2026, covers taxpayers whose VAT-able revenue exceeded SAR 187,500 in any year from 2022 to 2025. Their invoicing systems must be connected to the Fatoora platform by 1 February 2027. Source: ZATCA
The Ministry of Commerce has obliged all retail outlets to provide electronic payment since 25 August 2020, after a phased rollout from fuel stations and groceries to clothing, electronics and other shops. Card terminals belong inside the POS flow, not beside it. Source: Ministry of Commerce
Quick answer
A retail POS system is the software and hardware that records each sale at the till, takes payment and prints the receipt, while updating stock and sales for every branch. In Saudi Arabia it is also an e-invoicing system: each receipt is a simplified tax invoice that must meet ZATCA rules. Our POS and ZATCA guide explains the requirements.
Why it is its own job
Retail tills deal with volume, thousands of SKUs and stock that moves between branches, which a generic sales app rarely handles well.
A supermarket can carry tens of thousands of items, each with barcodes, pack sizes, supplier prices and promotions. Price changes have to reach every till and shelf label at the same moment, or cashiers end up overriding prices by hand and margin leaks away quietly.
Chains transfer goods between branches and a central warehouse every day. If transfers, receipts and returns are not posted in real time, one branch shows phantom stock while another runs out, and purchasing decisions are made on numbers nobody trusts.
Butchery, bakery and produce counters sell by weight. Scales need to print barcodes the till reads without errors, and fresh items need expiry and waste tracking so shrinkage shows up in reports instead of disappearing into the cost of sales.
Weekend evenings and the days before Ramadan and Eid push checkout lanes to their limit. Payment must stay fast with integrated card terminals, and each till has to keep issuing valid invoices if the internet or the link to head office drops.
Daily takings, card settlements, VAT and stock valuation all end up in accounting. When the POS and the ledger are separate islands, finance teams spend days reconciling in spreadsheets; with an integrated ERP and custom software layer the entries post themselves.
What we build
We build a retail POS around your operation or connect the systems you already own. Amwaj does not sell an off-the-shelf POS subscription; we engineer and integrate.
Simplified invoices with QR codes and cryptographic stamps, credit notes for returns and reporting to Fatoora, designed so you can choose whether each till or a central server stamps invoices. The rules are summarised in our e-invoicing guide.
A central item master, branch price lists, purchase orders, goods receipt, inter-branch transfers and stock counts with variance approval. Head office sees stock by location in near real time, and reorder points can raise purchase suggestions automatically.
Integration with barcode scanners, weighing scales that print price-embedded labels, receipt printers, customer displays and cash drawers, tested against the hardware you already have so you are not forced to replace equipment that works.
Payment terminals connected to the till so the amount is sent automatically, approvals return into the sale, and daily card settlements reconcile against POS takings instead of being matched by hand at month end.
Points, member pricing, bundle offers and time-limited promotions defined once and applied across every branch and your online store, with customer data handled in line with the Personal Data Protection Law (PDPL).
Tills keep selling and stamping invoices when the network drops, then report automatically on reconnection. Sales, VAT, stock movements and settlements post to your accounting system or ERP, whether that is Odoo, SAP or a custom platform.
Your options
Many people searching for a cashier app run a single shop and need something free or low-cost, and for them a ready-made subscription is usually the right call. The balance shifts as branches, SKUs and integrations grow.
| Ready-made cashier app | Retail POS suite with add-ons | Custom system built with Amwaj | |
|---|---|---|---|
| Best fit | One small shop with a simple catalogue | Growing stores happy to work the vendor's way | Multi-branch chains with their own processes and systems |
| Cost profile | Free tier or low monthly fee | Monthly per-till fees plus paid add-on modules | Project investment; running costs depend on hosting and support |
| ZATCA Phase 2 | Usually built in; check the vendor's integration status | Usually built in at the till | Designed into your architecture, with central or per-till stamping |
| Multi-branch stock and transfers | Basic or not available | Available, within the vendor's workflow | Built around your warehouse, transfer and approval rules |
| ERP and e-commerce integration | File exports or fixed connectors | Connectors for popular platforms | APIs to your ERP, online store, scales and loyalty |
| Data ownership | Held in the vendor's cloud | Held in the vendor's cloud; export options vary | Your database, hosted where you choose, including in KSA |
The plan
Timelines depend on the number of branches, the condition of your item data and how many systems the POS must talk to, so we scope before we estimate.
We review a representative branch and the warehouse, map checkout, returns, transfers and day-end closing, and audit your item master and barcodes. You receive a scope, an integration map and a ZATCA plan that takes your integration group's date into account.
We build or extend the POS, connect payment terminals, scales and your ERP, onboard devices on Fatoora and pilot in one branch. Real cashiers test peak-hour flows, offline behaviour and refunds before anything is rolled out further.
Branches go live in planned groups with opening stock counts, staff training and a support window. After rollout we monitor invoice reporting, sync errors and performance, then plan the next improvements, such as loyalty or online stock visibility.
Proof
Amwaj has no published retail case study yet. The three results below come from government, industrial and cloud projects and reflect the same engineering approach we bring to retail systems.
Free consultation
Send us a short description of your branches and current systems, and we will review where your POS, stock and invoicing stand. You will hear back within 24–48 business hours.
Whether your tills meet Phase 2 requirements, and what your integration group and Fatoora device onboarding involve.
Where transfers, goods receipts and stock counts break down, and which reports you cannot currently trust.
Whether to extend your current POS, connect it to your ERP or replace it, with the trade-offs of each.
Retail POS system
For a single small shop with a simple catalogue, often yes. Many ready-made cashier apps handle sales, receipts and basic stock at little or no cost. Before choosing one, confirm it supports ZATCA Phase 2 integration, Arabic invoices and your card terminal. A custom or integrated system starts to pay off when you add branches, a warehouse, weighed goods or an ERP that must stay in sync.
Cost depends on the number of branches and tills, the hardware you keep or replace, the systems to integrate (ERP, online store, scales, loyalty), data migration from your current system and the support level you need. Subscription apps charge monthly per device; custom systems are a project investment plus hosting and support. We scope these drivers first, then provide a written estimate.
If you are VAT-registered and ZATCA has assigned you to an integration group, your POS must connect to the Fatoora platform from the date in your notification, which ZATCA sends at least six months ahead. Wave 25 covers VAT-able revenue above SAR 187,500 in any year from 2022 to 2025. Our e-invoicing guide lists each wave.
It should. A well-designed retail POS stores sales locally, keeps stamping simplified invoices with their QR codes and queues them for reporting when the connection returns. ZATCA requires simplified invoices to be reported within 24 hours, so the system must alert managers if a till stays offline too long. We test this behaviour in the pilot branch.
Often, yes. If your current POS has an API or a reliable export, we build an integration layer that posts sales, VAT, card settlements and stock movements into your ERP or accounting system and pushes items and prices back to the tills. If the POS is closed or not ready for Phase 2, replacing it may cost less over time.
It depends on branch count, the quality of your item and barcode data, the hardware involved and the number of integrations. Most of the risk sits in data clean-up and the pilot branch, not in the rollout itself. We pilot, fix what real cashiers find, then go live in branch groups. Contact us for a scoped plan.
Related guides
What a supermarket POS in Saudi Arabia must handle: scales and weighted barcodes, peak-hour lanes, promotions, credit-note returns, e-payment, outages and central pricing.
How Saudi retailers and distributors keep branch and warehouse stock accurate: transfers, barcodes, expiry, reorder points, valuation and links to POS, ZATCA and the ERP.
What a POS system in Saudi Arabia must do under ZATCA Phase 2, the features that matter locally, cloud vs on-premise, off-the-shelf vs custom, and how to connect POS to ERP and e-commerce.
Tell us how many branches and tills you run, and we will show you the clearest route to ZATCA-ready, connected retail.
