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How the counter fits together

A till is not a second system. It is a faster way into the one you already have.

Most point-of-sale products are a separate business. They keep their own list of products, their own customers and their own takings, and at the end of the month somebody exports a spreadsheet and types it into the accounts. That gap is where a shop’s numbers go wrong — not dramatically, but a little every day.

This one has no gap. A sale rung up at a till writes a real invoice, moves real stock off a real warehouse, and posts a real payment against it. The same invoice a back-office user would have raised by hand, with the same number series, the same GST and the same place in your books.

The Sell screen. A bar at the top reads "Head office" and the shift number SH/2026-27/0001, with a "Change till" link at the right. Below it a wide "Search, or scan a barcode" box, then eleven item tiles each with a coloured stripe down its left edge, a name and a price — Standee carry bag ₹133.00, Roll-up cassette — aluminium ₹952.00, Printed vinyl sheet 3x6 ₹588.00, and so on. On the right a panel headed "This sale" reads "Tap something to start.", with Subtotal ₹0.00, Tax ₹0.00, Total ₹0.00 and a "Take payment" button.
The till, waiting. The shop and the open drawer are named along the top, the catalogue is tiles rather than a dropdown, and the running total is always in the same place.

What one sale actually does

Pressing Take payment is one action to the person at the counter and six to the product. They happen together or not at all — there is no state where the stock has moved and the invoice has not.

  1. Re-prices the basket from the catalogue. Never from a figure the device sent. A till is a machine on a shop floor, and a machine that reports its own total is a machine that can be told to report a smaller one.
  2. Checks the money adds up against what is owed.
  3. Works out what leaves the shelf — expanding anything sold as a recipe into the things it is actually made of.
  4. Writes the invoice, taking the next number from your own series.
  5. Moves the stock, after the document, so a failure to price never moves goods.
  6. Records how it was paid and posts the payment against the invoice.

Pressing it twice is safe. A till that lost its answer on a bad connection asks again, and the second ask is handed the first one’s result rather than making a second sale. This is worth knowing because it is the single commonest way a counter creates a duplicate invoice, and here it does not.

Where the sale ends up

What the counter doesWhere it landsWho sees it
Rings up and settles a saleAn invoice in Sales documents, numbered from your seriesAnyone with invoice access, immediately
Sells something stock-trackedA stock movement off the shop’s warehouseInventory, and the item’s stock figure
Takes cash, card or UPIA payment allocated to that invoiceAccounting, and the customer’s statement
Sells on creditAn invoice with nothing paid against itReceivables, ageing like any other
Refunds somethingA credit note, and the goods back on the shelfSales documents and Inventory

There is nothing to reconcile at the end of the day because nothing was ever in two places.

A business on the composition scheme

A business registered under the composition scheme cannot charge GST and must issue a bill of supply rather than a tax invoice. The counter reads which you are from your own tax settings and issues the right document without being told, on every sale.

This is worth saying plainly because the alternative is finding out later. A counter that assumes an ordinary taxpayer is a counter that issues a thousand wrong receipts before anybody notices, and those cannot be reissued after the fact.

What it is not

  • Not a second catalogue. The things a till can sell are the items you already have, with a switch on each saying whether it reaches the counter.
  • Not a second customer list. A sale can be anonymous, or it can name a customer you already have.
  • Not a second set of takings. A day’s cash is a day’s cash, in the same books.
  • Not on every plan. Point of sale is part of Full Suite. On any other plan it is bought as an add-on, and a business that has not bought it has no Point of sale entry in the sidebar and nothing about it running quietly.

The six screens

ScreenWhat it is forWho is normally in it
SellRinging up and taking the money.Whoever is at the counter.
SalesEverything rung up, newest first — reprints and refunds.The cashier for their own, a supervisor for the floor.
ShiftsOpening a drawer, and counting it at the end.Whoever opened it; a manager to close somebody else’s.
TerminalsRegistering a device that is allowed to take money.Head office, not the shop.
MenuWhich items reach a counter screen, and what is off today.A store manager.
The kioskA full-screen ordering machine for customers.Nobody — it stands in the lobby.

The kiosk is deliberately not under Point of sale in the sidebar. It is a route of its own, because a screen standing unattended in a lobby must not be one mis-tap away from the back office.

Something missing or wrong here? Tell us. A question that needed asking usually means a page that needed writing.