Two
A small shop, from the shutter going up to the shutter coming down
A general store selling a few hundred things, where the price is on the packet and the queue is longest between six and eight.
- Morning. The phone opens straight onto the till. Nothing to load and nobody to sign in again, because it stays signed in.
- The first customer. Scan the barcode, the price comes up, the stock goes down by one. Three more items, then Paid. The bill is printed or shown as a QR the customer scans to keep it.
- The network drops. Nothing changes. Every sale is written to the phone first, and sent up when the signal comes back. You will not know it happened.
- The regular who pays on Friday. Tap Credit instead of Paid and put his name on it. It sits under Credit until he settles.
- The helper takes over. He signs in with the shop code and his own four digit PIN. He can sell. He cannot change a price or see what the shop took.
- Closing. Open My Shop. The day is already added up, split by cash and UPI, with what sold most at the top.
Your day ends when you say it does. A shop day starts at four in the morning. So a sale at one at night still counts for the night before. That is where you would have written it yourself.