Seyon Labs · Chennai · POS software

POS billing software for Chennai shops and restaurants

POS billing software runs the counter: billing, GST invoices, returns, stock updates and daily sales reports. Seyon Labs plans and builds POS software in Chennai for retail shops, restaurants and growing multi-counter businesses, mapping your billing, devices and reports before deciding what to configure or build.

The short answer. Choose POS software by testing a real sale from scan or item selection through payment, receipt, stock update, return and end-of-day close. Include the devices, tax invoice setup, branches and integrations your team actually uses.

Start with the checkout flow

For a retail shop, the hard part may be product variants, barcode labels, returns and branch stock. For a restaurant, it may be table or order handling, modifiers, kitchen tickets and bill splits. A pharmacy or specialty counter may need batch details, expiry handling or stricter user permissions. These workflows differ, so a useful POS demo should follow your day rather than a generic sample sale.

Write down one routine transaction, one exception and one closing task. For example: sell a discounted item, return it against the original bill, then compare the shift’s cash, card and UPI totals. Ask the vendor to demonstrate each step using your product and payment rules.

Requirements to confirm before you choose

Use these questions to scope the POS
Area	What to confirm
Checkout	Barcode or search flow, held bills, discounts, split tenders, returns, void permissions and receipt format.
Products	Variants, units, bundles, price lists, promotions, barcode rules and who can change prices.
Inventory	When stock changes, how purchases and transfers arrive, how counts are reconciled, and how damaged or returned goods are recorded.
Payments	Cash, card and UPI recording, settlement reconciliation, refunds and whether a payment provider integration is required.
Devices	Exact printer, scanner, weighing scale, cash drawer and terminal models. Test the actual hardware before rollout.
Reporting	Shift close, tax summaries, item and category sales, cashier activity, stock movement and branch comparisons.
Connectivity	If checkout must continue offline, define what works without internet and demonstrate reconnection and duplicate prevention.

GST invoices need a real review

Give your software vendor the invoice format and business rules approved for your operation, then have your accountant or tax adviser confirm the setup before it goes live. GST invoicing requirements depend on the transaction and taxpayer. Review the current CBIC GST invoice rules and get professional advice for your situation; a software demo is not tax advice.

When custom POS is worth evaluating

A ready-made POS is usually the simpler choice when your counter follows standard retail or restaurant patterns and its reports, hardware and support fit. Consider a custom system when your pricing, approval, stock or branch workflows are materially different, or when staff must re-enter the same sale in multiple tools.

Before building, list the gaps that create daily workarounds. Keep the first release focused on one counter journey, then add secondary workflows after staff have used the core system. If you need purchasing, multi-location stock or owner reporting, compare POS with a broader ERP system in Chennai. Our guide also explains when POS, ERP or CRM fits.

What to bring to a POS walkthrough

A sample product list with variants, units and current price rules.
Your printed or digital bill, including the fields your accountant expects.
The names or model numbers of the devices at the counter.
Examples of a return, discount, split payment and end-of-day close.
The number of counters and locations, plus any accounting or inventory system to connect.

This turns a sales demo into a practical fit check. It also exposes missing integrations and migration work before anyone commits to a timeline.

Frequently asked

What should POS software do for a Chennai shop?

It should match the checkout flow, record payments and sales, handle the shop’s product and price rules, and provide useful sales and stock records. Test returns, devices, invoice setup, reports and branch workflows before choosing.

Can a custom POS connect to inventory or ERP?

Yes, if the connection is included in the scope. Agree on which system owns product and stock data, when updates happen and what staff see if a sync fails. See our ERP and inventory software.

Will POS software work if the internet goes down?

That depends on the product. If internet outages are a concern, test disconnected checkout and the full sync process after reconnection before purchase.

How much does POS software cost in Chennai?

Cost depends on the number of counters, branches, product rules, devices, integrations, migration and offline needs. Ask for a written scope and compare ongoing support and ownership terms along with price.

Bring one real counter workflow.

We’ll map the steps with you and tell you whether a ready-made POS, an ERP or a custom build is the better fit.

Talk through your POS Read the POS buying checklist