Billing for your supermarket, from the first aisle to the godown
Many aisles, a godown behind them and a counter that must keep moving, all in one place.

What a long counter and a deep godown cost a small supermarket
The way customers pay can change in a week
The Super Market Welfare Association Kerala said in October 2026 that supermarkets would stop accepting UPI payments from 15 October to protest proposed charges on UPI transactions. A supermarket takes cash, cards and UPI in the same queue, and a decision about one of them reaches the counter at once. If one way of paying stops, the queue is longer, cash is heavier, and the owner has to know that evening what came in through which door. A rumour that a payment method is closing is enough to send a customer to the shop next door. It is also the shop with the biggest bills, so a payment that goes wrong is a large amount in a single minute.
The basket goes home with a boy, and the bill goes nowhere
A supermarket sends baskets to the flats and houses nearby with a boy on a cycle. The paper bill goes into the bag, and the family's copy is lost with the carry bag. Later a customer says the basket was short by two items, and the shop has no bill to show what was packed.
The aisle has room for fewer jars than the makers bring
A supermarket gives the jars of pickle and papad an aisle, and an aisle is only so long. Jars from women's groups and small makers stand beside the big brands, and every jar added in a week is a hand's breadth taken from the next one. The shelf looks full whether the jars are selling or waiting, so a full shelf hides the slow ones. The owner measures the aisle in feet and never in sales.

Tools for a store with aisles, a godown and a UPI counter
UPI payments
The QR code beside the packing shelf, scanned while the boy bags the trolley, so the bags and the payment are done together.
Sell to other businesses
Small shops in the lane apply to buy cartons from you on credit, each with its own page. Their bills sit apart from the family shoppers' ones.
Orders to suppliers
The order for the cartons sent to the supplier on Monday from the weekend's numbers, not from the owner's walk round the aisles, and the delivery noted when the truck unloads.


A mart that gave women's groups a shelf
Aisles, cartons and the neighbours who buy from you
The carry bag is an item with a small rate
Put the carry bag in as an item with its own small rate, and the bags taken home in a day show in the day's sales. The packing shelf never runs out of bags without anyone noticing, and the cost of the bags is no longer lost inside the day's margin.
A festival Sunday is read on Monday, carton by carton
After a festival Sunday the aisles are half bare. On Monday morning open that Sunday and see which cartons of oil, biscuits and soap left the shelves hardest and which stood untouched. The godown's cartons that must come forward to the aisle first are the ones at the top of that list.
Smaller shops in the lane buy cartons from you
A supermarket that buys well sells cartons to the small shops around it. A small shop gets goods it could not buy by the single pack at a fair rate, and the supermarket sells faster. Each carton is an item with its own rate beside the packet, and it goes out on a proper bill with GST where needed, so the lane's shops can show what they paid. The carton is counted off the godown, not off the shelf.
Questions a small supermarket owner asks
A woman from a self-help group brings jars of pickle every fortnight. How do I keep her goods and her money apart from the rest?
Put each of her goods in as an item. Every fortnight, note the jars she brings with the day. What you owe her is the jars of that run that sold, so her money is counted run by run.
A small shop wants a carton of biscuits, but my shelf rate is for one packet. Can the carton have its own rate?
Yes. Make the carton an item with its own rate, named with the count in it, next to the packet. The small shop's bill says carton, and the family's bill says packet.
Loose rice and packed bags of rice come from one godown. Can I sell both?
Yes. Loose rice is an item by the kilo, the bag another by the bag. Small buyers take loose and families take bags, so the counts show which to stock more.
Customers ask which of my goods are made locally. Can I show that?
Start the name of each local item with the same word, such as local. The customer sees it on her bill, and at the counter you find every local item by typing that word.
Festival turnover in Goa and a Rs 99 store in Dimapur
Goan markets saw about Rs 100 crore turnover during Ganesh Chaturthi in 2021, with food, clothing, sweets and ornaments in high demand.
Super99, a chain selling Indian-made everyday goods with a Rs 99 price cap, opened in Dimapur, Nagaland, on 2 September 2023.