Connecting POS and Ordering System: Why Integration Matters
Integrated POS and ordering system: eliminate double data entry, save 15–30 min daily, and get one complete Z-report covering online and on-site sales.
TL;DR: Running a separate POS and a separate online ordering system costs restaurants 15–30 minutes of manual reconciliation every day, creates gaps in daily revenue records, and requires maintaining two menus in sync. An integrated system like GastroSystem eliminates all of that — one menu, one dashboard, one receipt printer workflow, one Z-report. Most restaurants complete the switch in a single day.
The Problem: Two Systems, Double the Work
In a typical restaurant, on-site and online orders travel through completely separate tracks:
On-site order flow:
- Server takes the order
- Entry into the POS system
- Kitchen ticket prints automatically
- Order is prepared
- Payment processed through the POS
Online order flow:
- Order arrives via Lieferando or own ordering system
- Staff confirms on a separate tablet
- Order is manually transcribed into the POS — or not at all
- A separate ticket prints (or is handwritten)
- End of day: manual reconciliation of both systems
This separation causes real, measurable problems:
- Inaccurate revenue recording: Online orders that never reach the POS mean day-end totals don’t reflect actual sales
- Double menu maintenance: Price changes must be applied in two places — and when one is missed, customers see mismatched prices
- Daily time loss: Manual transcription and reconciliation typically costs 15–30 minutes per day — roughly 120 hours per year
- Compliance risk: Incomplete records can create problems during a tax authority audit (GoBD requires complete, traceable bookkeeping)
The Solution: One Integrated System
An integrated system like GastroSystem connects POS and online ordering in a single application. Everything flows through one interface.
One Menu for Everything
You maintain your menu in one place. Prices, descriptions, allergen information, and extras are shared automatically across the POS, the online ordering page, and the QR ordering interface. Change the price of a dish once — it updates everywhere immediately.
One Dashboard for All Revenue
The dashboard gives a unified view:
- Total daily revenue (online + on-site combined)
- Breakdown by order channel (counter, QR table order, online delivery, phone)
- Top-selling products across all channels
- Revenue trends over time
No spreadsheets, no manual addition. The numbers are always current.
One Receipt Printer for All Orders
Whether an order arrives at the counter, from a customer scanning a table QR code, or from your online ordering page — the receipt printer in the kitchen prints the ticket automatically. The kitchen team works with one consistent flow regardless of how the order arrived.
One Z-Report at Day’s End
The daily closing report (Z-report) automatically captures all revenue — online and on-site:
- Breakdown by payment type (cash, card, online payment)
- Breakdown by order channel
- Breakdown by tax rate (where applicable)
- Cancellations and refunds
This is not just convenient — it’s required for proper bookkeeping. Restaurants operating in Germany must maintain complete, tamper-proof records under GoBD.
Benefits at a Glance
| Aspect | Separate Systems | Integrated System |
|---|---|---|
| Menu maintenance | 2× (POS + online) | 1× |
| Revenue overview | Manual reconciliation | Automatic |
| Receipt printing | 2 separate workflows | 1 unified workflow |
| Z-report | Incomplete or manual | Automatically complete |
| Price changes | Must update in 2 places | Update once, syncs everywhere |
| Compliance | Gap risk | Seamless |
| Daily overhead | +15–30 min | Near zero |
Practical Example: Pizzeria With Integration
A pizzeria doing 50% on-site and 50% delivery processes about 80 orders per day.
Without integration:
- 40 on-site orders in the POS
- 40 online orders confirmed on a separate tablet
- End of day: 20 minutes of manual reconciliation
- Typical error rate: 2–3 orders not recorded in the POS
With GastroSystem (integrated):
- All 80 orders flow through one system
- Kitchen tickets print automatically from any channel
- Z-report runs in seconds at close
- Time saved: 20 minutes/day = approximately 120 hours per year
How It Works in GastroSystem
Online Orders
When a customer orders through your ordering page:
- The order appears instantly in the GastroSystem app
- A staff member confirms with one tap, setting the estimated delivery time
- The kitchen ticket prints automatically
- The customer receives a confirmation with the ETA
- The order is recorded automatically in the POS for the Z-report
Counter Orders
For orders placed at the counter or table:
- Staff enters the order directly in the GastroSystem app
- Kitchen ticket prints automatically
- At payment, staff selects the payment type (cash, card, online)
- Customer receipt prints
QR Table Orders
With QR ordering, guests order from their phones at the table:
- Guest scans the QR code on the table
- Order is captured directly in the system with the table number
- Kitchen ticket prints automatically, including table number
- Payment is handled online or at the counter
Migrating from Separate Systems
Switching from two systems to one integrated solution is straightforward:
- Import the menu: Existing products and categories transfer over
- Reuse hardware: Existing tablets and receipt printers typically work
- Configure areas: Counter, terrace, delivery — set up as separate zones
- Run parallel for a day: Test alongside the existing setup
- Cut over: Switch fully on a quieter service day
Most restaurants complete the full transition within one day.
Common Questions
Can I connect my existing POS to GastroSystem? GastroSystem replaces your existing POS and ordering system in one. A connection to third-party systems is generally not needed because GastroSystem covers both functions.
Does GastroSystem support fiscal requirements? Yes. GastroSystem supports TSE (Technical Security Device) for German fiscal compliance — both hardware and cloud TSE are supported.
What happens if the internet goes down? GastroSystem works offline. Orders are stored locally and synced when connectivity returns. Online orders from customers are naturally only possible with an active internet connection.
Conclusion: Integration Saves Time, Money, and Headaches
The separation of POS and ordering systems is a relic of pre-digital restaurant operations. An integrated system like GastroSystem unites both, saves measurable time every day, eliminates error sources, and produces seamless records for both management and compliance.
Read more about GastroSystem’s integrated POS system and ordering system, or start directly with a free demo.
