Module 11 · Specialist · 9 min read

Working offline and setting up the till

You will be able to: Describe what the till does when the server is unreachable; Resolve refused sales in the offline queue; Find the settings screens that shape the till.

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The sale path never blocks. If the server cannot be reached, or refuses a sale because of the state of the books, the till saves the sale on this PC with a temporary number such as POS-LOCAL-1, the receipt says OFFLINE, and Waiting to send goes up. Zeyto sends the queue by itself, oldest first, using the same reference each time so a replay can never post a sale twice.

What works offline and what does not

Keeps working offlineNeeds the server
Selling, taking payment, printing receiptsRefunds, voids and exchanges (the manager PIN is checked live)
Holding and recalling cartsOpening the cash drawer (F11)
Cash in/out within the manager limit (queued)X report, and the Z report of the shift
Showing the Customer displayA paid out above the manager limit

A sale refused for its content, such as not enough stock or a price you may not change, is not accepted: the screen says Rejected and why. A sale refused for good by the server stays visible. Open the offline queue from the Waiting to send badge. Each refused sale shows what it was and the server's own reason. Retry sends it again; Discard needs a reason and a manager's username and POS PIN, which the server verifies, so with the server down the sale stays queued.

Watch outAn item sold beyond stock while offline is costed provisionally. The header shows a notice such as Sold beyond stock offline: 2 (cost provisional). Tap it to dismiss once your manager has seen it.
A bad connectionAt 10:15 the link fails and three sales of AED 94.50, 47.25 and 210.00 are taken. The badge reads Waiting to send: 3 and the receipts are numbered POS-LOCAL-1 to -3. When the link returns they are sent in order and finalized with real POS numbers. The shift's expected cash includes them once they arrive.

Settings that shape the till

  • Settings ▸ POS Behaviour: receipt auto-print and copies, drawer behaviour and printer, Quick-Cash notes (up to eight), cash rounding to 0.25, prompt for customer, Line Control and Cash Control.
  • Settings ▸ POS Sale Extras: pick a salesman with commission, take tips, Serial / IMEI scanning (Required, Optional or Off), EAN-13 scale labels for weighed items, a cashier on each sale and rules for customers created at the till.
  • Settings ▸ Printers: add the receipt printer (Receipt printer ESC/POS) with an 80 mm or 58 mm roll, choose USB or Windows printer or network address, and press Print test page.
  • Settings ▸ Numbering: the POS receipt prefix.
  • Settings ▸ Users & Permissions: the POS PIN, Max Discount % and whether the user can edit prices.
The POS Behaviour settings screen with the options that shape the till.

Settings, POS Behaviour: options that shape the till.

Settings, POS Behaviour: options that shape the till.
The POS Extras settings screen.

Settings, POS Extras.

Settings, POS Extras.

Settings screens take effect on a till only after it is reloaded or reopened. They change behaviour, never the amounts posted. POS has to be in the licence; without it the settings apply to nothing and the screen says so.

Weighed itemA scale prints an EAN-13 label that carries the weight. With Prefix 20, a 5-digit item code, 5 value digits and 3 decimals, a value of 01250 means 1.250 kg. At AED 18.00 per kg the line is 1.250 × 18.00 = AED 22.50 before VAT.
TipBecause the till keeps working offline, check the Waiting to send badge at the end of every day. Close the shift only after the count is zero.

Try it in the demo

  1. Open Settings ▸ POS Behaviour and Settings ▸ POS Sale Extras in the demo and read each card.
  2. Open Settings ▸ Printers and read the printer types offered (look only).
  3. In the till, find the Waiting to send badge and click it to see the queue screen.
  4. Open Settings ▸ Users & Permissions, open a cashier and find POS PIN and Max Discount %.
Open the live demo

Public demo company, sign in as admin / demoAdmin123. Data refreshes nightly.

Key takeaways
  • An offline sale gets a POS-LOCAL number and is sent later; the server never double-posts it.
  • Refunds, voids, exchanges and the drawer need the server.
  • Refused queued sales are retried or discarded with a manager's approval.
  • POS Behaviour, Sale Extras, Printers and Numbering shape the till without changing posted amounts.

Check yourself

3 questions on this lesson. Not timed, not the exam, and you can try again. Score 60% or more, and read the lesson, to complete it.

1. An offline sale is saved with a temporary number. What does it look like?

2. Which of these still work when the server cannot be reached?

Select all that apply.

3. How does Discard work on a refused queued sale?

Practice questions for this module · Printable study sheet