# A Short Guide to the All-in-One Devices Replacing Legacy Cash Registers

> One device for invoicing, card payments and automatic myDATA reporting. See what all-in-one systems offer and how to switch from a legacy cash register.
>
> AI-friendly Markdown version. HTML version: https://wrapp.ai/en/resources/all-in-one-pos-cash-register-replacement
> EL version: https://wrapp.ai/el/resources/all-in-one-antikatastasi-tameiakis.md

Legacy cash registers are on the way out, and all-in-one systems are taking their place: a single device that covers invoicing, card payments and automatic reporting to myDATA, the e-invoicing platform of AADE (the Greek tax authority). Here is what they are, why they pay off and how to make the switch.

### What an all-in-one system is, how it works and why it pays off

An all-in-one is a single solution (usually a tablet or a portable device) that combines:

- Invoicing & receipts (issuing and sending tax documents)
- POS payments (card, contactless, wallet)
- Automatic myDATA reporting (through a licensed e-invoicing provider)
- Cloud storage & backup (security and access from anywhere)
- Live analytics & reporting (sales, customers, products, trends)

In plain terms: one device with everything built in. No separate cash register, printer, router, tangled cables or appointments with technicians.

### Why to look at it seriously now

- **Tax incentives**: Whatever you invest in software or devices counts double as a business expense in Greece, if you move to e-invoicing through a licensed provider (YPAHES) before the mandatory deadline.
- **No more daily routine**: No daily Z closing report to print, no manual eSend upload to myDATA; transmission happens automatically.
- **Freedom from infrastructure**: Wireless, light, portable. You work wherever suits you.

### The 10 key benefits, with examples

- **Compliance without stress.** Documents are sent to myDATA automatically, with no manual steps. You avoid the errors and rituals of the old cash register.
- **All-in-one: fewer parts, zero tangle.** Invoicing + POS + receipts in one device. You skip the cash register, standalone printer, router, cables and compatibility issues.
- **Zero setup, zero service crews.** The solution arrives ready in a box. You switch it on and work, without waiting for a technician to install or repair anything.
- **Remote updates & support.** If something goes wrong, the software is updated remotely, with no downtime.
- **Portability & flexibility.** Shop, office or out at the customer? The device follows you, not the other way around.
- **Live statistics & data-driven decisions.** See sales, customers and products in real time from any device (phone, tablet, laptop). You decide with data, not gut feeling (for example, which products are moving and which hours are busiest).
- **Better customer experience.** Faster checkout, quicker service, electronic receipts and a modern image for the business.
- **Lower operating costs.** Less equipment means less maintenance, paper and ink. Running costs become predictable.
- **Security & backups.** Everything lives in the cloud with controlled access. You no longer depend on one machine on the counter that takes everything down with it if it breaks.
- **Scalability & flexibility.** Add users or points of sale whenever needed, without ripping out infrastructure. A better fit as the business grows.

### What your day looks like after the switch

- **Morning**: switch on the device and start, no Z report, no printing.
- **During the day**: issue documents and take payments wirelessly, with automatic transmission.
- **Evening**: see live how the day went, revenue, products, peak hours.
- **From anywhere**: access everything from your phone or computer.

### Migration checklist (quick guide)

- Choose a licensed e-invoicing provider
- Pick an all-in-one device (tablet or portable terminal)
- Connect a payment method (POS/wallets)
- Set up myDATA (automatic transmission)
- Import your core products, VAT rates and categories
- Set user access controls
- Ready to issue documents

### Conclusion

All-in-one systems are not an upgrade of an old cash register; they are a new way of operating.

They combine simplicity, automation and real-time data, eliminating paperwork and technical obstacles.

Switching to them is not just a technology step, but a strategic choice for businesses that want to run faster, cleaner and smarter.

For a quicker summary, take a look at [our video on Instagram](https://www.instagram.com/reel/DPs_kLBDqRE/).

## Frequently asked questions

### What happens if the internet connection drops?

The system keeps working offline and syncs your documents as soon as the network is back.

### Can I keep my current payment setup?

Yes. All-in-one devices accept cards and wallets and work alongside your existing payment flows.

### Do I need a technician for installation and updates?

No. The device arrives ready in a box and software updates are applied remotely, with no service appointments.

### How do documents reach myDATA?

Automatically, through an AADE-certified e-invoicing provider such as Wrapp, with no manual eSend uploads and no daily Z reports.

Need help? Contact us: https://wrapp.ai/contact