POS software for fast counter billing.
Scan, take payment and print a receipt in seconds, with cash control and returns on the same screen.
One to ManyCounter
The screen your cashiers bill on.
Store 1
Counter 1
Store 1 Cashier
Shift open 10:11 am
| Item | Qty | Price | Disc. | Amount | |
|---|---|---|---|---|---|
A4 Long Notebook 200 pages NB-A4-200 | −2+ | 99.00 | — | ₹198.00 | |
Basmati Rice 5 kg RICE-5KG | −1+ | 682.50 | — | ₹682.50 | |
Cotton Round Neck T-Shirt (M) TEE-M | −1+ | 418.95 | — | ₹418.95 |
Customer (F4)
Walk-in
Quick items
What is POS software?
POS stands for point of sale: the place where a customer pays. POS software runs the billing counter. It finds products by barcode, adds up the bill with tax, takes payment, prints a receipt and records the sale.
The O2M counter is built for speed and control. Cashiers sign in and go straight to the counter, with no other menus to learn, and work from the keyboard with a barcode scanner. Each outlet sets how far a cashier can go, and anything above a limit needs a store manager's PIN.
It runs in Chrome or Edge with nothing to install. Receipts print straight to a USB or serial thermal printer, and shared counters switch between cashiers with a PIN. Pair it with invoicing for business customers.
Simple from the first day.
Step 1
Open the shift
The cashier signs in, enters the opening cash and starts billing.
Step 2
Build the bill
Scan items, search by name, or tap a quick item.
Step 3
Take payment
Take cash, UPI or card, and print or send the bill.
Step 4
Close the day
Count the drawer, close the shift and review the report.
What POS and Counter Billing does for you.
Built for speed
Keyboard shortcuts, barcode scanning and quick items keep the queue moving.
Staff stay within limits
Discounts and price changes above the limit need a store manager's PIN.
Cash you can trust
Every shift ends with a cash count, and differences are recorded.
Works through outages
With offline billing on, counters keep billing without internet.
Scan, pay and print in seconds.
Scan each item, or type a barcode or SKU. Search finds items by name, and a bill can be held while you serve the next customer.
Store 1
Counter 1
Shift open 10:11 am
Item
Total
₹1,299.00
Loose goods
Products sold by weight or volume take decimal quantities, such as 1.25 kg of rice.
Walk-in or named customers
Leave Walk-in customer, or add a mobile number for a bill in their name.
Cash with change
Choose cash, UPI, card or a mix. O2M shows the change to give back.
UPI QR
With your own gateway, the counter shows a QR for the exact amount, and the bill completes when paid.
Take items back without slowing the queue.
Scan the barcode on the customer's receipt, enter what comes back and why, and choose how the money goes back.
Sample Retail Private Limited
12, MG Road, Bengaluru, Karnataka 560001
GSTIN 29ABCDE1234F1Z5
Credit Note
CN-2627-00027
30 Oct 2026
Bill to
Metro Retail
48, Residency Road, Bengaluru, Karnataka 560025
GSTIN 29AAACM1234A1Z2
Against invoice: OF1-2627-00412
Reason: Goods returned
| Item | HSN | Qty | Rate | GST | Taxable |
|---|---|---|---|---|---|
| Cotton Round Neck T-Shirt (M) | 6109 | 5 | 399.00 | 5% | 1,995.00 |
This credit reduces the amount the customer owes.
Sample Retail Private Limited
MG Road Store, Bengaluru 560001
GSTIN 29ABCDE1234F1Z5
TAX INVOICE
A4 Long Notebook 200 pages
Basmati Rice 5 kg
Cotton Round Neck T-Shirt (M)
MG1-2627-00931
Thank you. Visit again.
Exchanges
Put the new items on the counter. O2M makes the credit note and the new bill together, and the customer pays or gets back only the difference.
Refund references
O2M records the refund. Pay UPI from your own app and enter the UTR, or enter the reference from the card machine.
Same-day voids
A bill can be cancelled only on the day it was made. After that, use a return.
Net amounts
An order shows Partly returned or Returned, and reports count the net amount.
Know what should be in every drawer.
The cashier enters the opening cash and opens the shift. At closing, O2M shows the expected amount and any difference.
One to ManySample dataShifts and cash
Open and close shifts, and count the cash drawer.
Open shifts
9
Cash expected
₹1.24L
Cash counted
₹1.24L
Cash counts
Count the notes and coins, and add a note if the drawer is over or short.
Shift reports
Cash, UPI and card, bills and returns for each shift.
Counter sales
Every bill by outlet, counter and cashier, with how it was paid and what was returned. Export it as CSV.
Cash differences
A difference above the limit needs a store manager's approval, and the approver is saved on the shift.
Share a counter between cashiers.
Register a shared device, and the counter shows a lock screen with the names of the staff. A cashier taps their name and types their PIN.
One to ManySample dataStores and teams
Every outlet and counter today.
Sales today
₹6.42L
Bills today
1,186
Counters open
9 of 10
Registered devices
Only registered devices can switch cashiers by PIN.
Lock between cashiers
Lock the counter and the next person signs in. The shift stays open.
PIN safety
Easy PINs such as 1111 are refused. A PIN locks for 15 minutes after 5 wrong tries, and a store manager can reset it.
Barcodes for everything
A product without a maker's barcode gets an in-store barcode and a printed label.
Bill without touching the mouse.
| Key | What it does |
|---|---|
| F2 | Scan or search for a product |
| F4 | Choose the customer |
| F8 | Open held bills |
| F9 | Pay |
| F12 | Complete the bill and print |
What a cashier can and cannot do.
| Area | Can | Cannot |
|---|---|---|
| Bills | Bill, hold and resume bills | Go above a limit without a manager |
| Stock and prices | Look up stock and prices at their outlet | Change stock or prices |
| Returns | Take returns and exchanges within the limits | Refund above the limit without a manager |
| Shifts | Close their own shift | See other outlets or other cashiers' shifts |
| Settings | Change their own password and PIN | Open reports, dashboards or settings, or add staff |
Everything in one place.
Billing
- Barcode scan and product search
- Hold and recall bills
- Walk-in customers or search by phone
- Discounts and price changes within limits
- Store manager PIN approval
- Loose goods by weight or volume
Payments
- Cash, UPI and card
- Counter UPI QR through your own gateway
- Refunds to cash, UPI or card
Returns
- Returns and exchanges on one screen
- Same-day voids
- Credit notes with every return
Shifts and cash
- Open and close shifts
- Cash counts and differences
- Shift reports and counter sales
Devices and printing
- Registered devices shared with a PIN
- 80 mm and 58 mm thermal receipts
- Printing from Chrome or Edge
- Billing without internet
For every kind of counter.
Single shops
One counter, a thermal printer and stock that adds up.
ExploreRetail chains
A team, limits and reports for every outlet.
ExploreGrocery and loose goods
Bill by weight or volume in decimals, such as 1.25 kg.
Fashion stores
Size and colour barcodes, with exchanges on one screen.
ExploreHow to choose POS software
What to test before you put a system on your counter.
Time to bill
Try a real basket with a barcode scanner. Count the keys and clicks from first scan to printed receipt.
Printer support
Check that your thermal printer works with your browser or computer, and whether extra software is needed.
What happens offline
Find out which sales keep working without internet and how bills are sent later.
Cash control
Look for opening cash, closing counts and recorded differences on every shift.
Staff limits
Discounts and refunds should stay within limits, with approvals saved on the bill.
Returns on the same screen
Returns and exchanges should not send a customer to another desk.
POS and Counter Billing: your questions answered.
Which printers work with the counter?
Thermal receipt printers that connect by USB or serial, printing from Chrome or Edge on 80 mm or 58 mm rolls. Any other printer can print the PDF.
Can several cashiers share one computer?
Yes. Register the device, and cashiers switch with their own PIN.
What happens when the internet drops?
The counter shows Offline and keeps billing cash, UPI and card sales with bill numbers set aside for it. Bills are sent to O2M when the connection is back.
What needs a connection?
Credit sales, returns and voids need a connection.
Can a cashier give a discount?
Yes, up to your outlet's limit. Above it, a store manager approves with their PIN on the same screen.
Can I sell by weight?
Yes. With loose goods on, items sold by weight or volume can be billed in decimals.
Do I need to install anything?
No. The counter runs in Chrome or Edge.
Can I send the bill on WhatsApp?
Yes. The receipt prints, and you can also send it on WhatsApp.
What does POS mean?
POS stands for point of sale, the place where a customer pays.
Does it work with a barcode scanner?
Yes. Scan each item at the counter, or type the barcode or SKU.
Can a grocery store or supermarket use it?
Yes. Sell loose goods by weight or volume, print labels for items without a barcode, and keep the queue moving with quick items.
Also in Billing and POS
Single Store Billing
Everything one shop needs at one counter.
ExploreMulti-Store Billing
Run every store with clear staff and cash control.
ExploreInvoicing
Tax invoices, quotations, challans and credit notes.
ExploreInventory Management (IMS)
Track stock across stores, warehouses and sales channels.
Explore