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Online Ordering System for Restaurants: Meaning, Types & How It Works

What Is an Online Ordering System for Restaurants?

An online ordering system is software that lets a restaurant receive and fulfil food orders placed through Swiggy, Zomato, the restaurant’s own website, or WhatsApp, with all incoming orders landing on one screen inside the POS.

For a cloud kitchen in Bodakdev, Ahmedabad running on two aggregators plus its own site, this is not optional tech. Without a centralised system, staff toggle between separate tablets and re-enter each order into the POS by hand. That is where errors start and orders get missed during peak hours.

How Does an Online Ordering System Work?

StepWhat happens
1Customer places an order on Swiggy, Zomato, or the restaurant’s website
2Order reaches the POS automatically (no manual re-typing)
3POS auto-accepts (accepts on its own within seconds) or staff taps to accept
4Digital KOT routes to the correct kitchen station
5Kitchen prepares the order; rider picks up

If the POS does not talk to the aggregator’s API, someone types the order in by hand. In our experience across restaurant clients, that manual step is where most order errors and delays originate during peak hours.

What Are the Types of Online Ordering Channels?

ChannelCommission rangeBest for
Swiggy / ZomatoRoughly 18% to 30% (varies by contract)Discovery, volume, new customers
Own website or appZero commission (payment gateway fees only)Repeat customers, brand building
WhatsApp orderingZero commissionNeighbourhood regulars, small outlets
ONDC-based platformsTypically lower than aggregatorsCost-conscious outlets

Commission ranges are approximate; check your specific agreement for exact rates.

A biryani outlet in Rajouri Garden, Delhi might run most delivery through aggregators for discovery, but push repeat customers to its own website where the margin is better. That split is a business decision, not a technology limitation.

Online Ordering System Example

A cafe on Boat Club Road, Pune runs on Swiggy, Zomato, and its own website. A typical Saturday might look like this (illustrative example, not a specific case study):

ChannelOrdersAvg. order valueCommission paid
Swiggy55Rs 380~Rs 4,598 (at 22%)
Zomato40Rs 420~Rs 3,360 (at 20%)
Own website25Rs 510Rs 0

All 120 orders land on the same POS screen. The kitchen sees one queue, not three. Commission figures are illustrative; actual rates depend on the contract.

Why Does an Online Ordering System Matter for Indian Restaurants?

Managing aggregator volume on separate tablets creates three problems:

  1. Missed orders. A Zomato order sits unaccepted on a tablet nobody is watching. The penalty hits your listing rank. Integrating orders into the POS means the alert shows up where staff are already looking.
  2. Menu sync errors. Marking a dish out of stock on the POS but forgetting to update Swiggy means customers order something you cannot serve. A synced digital menu fixes this in one action.
  3. Reconciliation headaches. Matching weekly Swiggy payouts against individual orders is tedious without a POS log. This delivery commission calculator helps cross-check the numbers.

If you run delivery from your own premises (not just through aggregators), the FSSAI food safety regulations on packaging and hygiene apply directly to you. This delivery vs dine-in comparison lays out the broader trade-offs.

How Petpooja POSS Handles Online Orders

Petpooja POSS integrates with Swiggy, Zomato, and other aggregators via direct API connections. Orders appear on one billing screen, you can set rules so each channel auto-accepts orders without staff intervention, and the KOT routes to the kitchen without manual re-entry. Menu updates sync across all connected platforms from one place.

Across 1,00,000+ restaurants on the platform, we see aggregator integration as one of the most-used modules for outlets doing delivery. For tips on growing volume, check how to increase sales on Zomato and Swiggy.

Frequently Asked Questions

Do I need a separate tablet for each aggregator?

Not if your POS integrates with them. With a system like Petpooja POSS, Swiggy and Zomato orders appear on your existing POS screen. The separate tablets become unnecessary.

What commission do Swiggy and Zomato charge?

Rates generally fall between 18% and 30% of order value, but the exact number depends on your city, restaurant type, and contract terms.

Can I run my own online ordering without an aggregator?

Yes. Many POS platforms offer a branded ordering page. You avoid commissions and keep customer data, though you lose the discovery traffic aggregators bring. The trade-off is worth it for outlets with a strong repeat customer base.

What happens if an aggregator order is not accepted in time?

The platform marks it as missed, which can lower your listing visibility and affect future order volume. Setting your POS to accept orders from that channel on its own reduces this risk.

Does online ordering integration affect my food cost?

Indirectly, yes. Commissions eat into margins, so many restaurants mark up delivery menu prices to compensate. Track it with a food cost calculator.

Is ONDC an alternative to Swiggy and Zomato?

ONDC (Open Network for Digital Commerce) is a government-backed open protocol. Some restaurants in Bangalore and Delhi have started listing on ONDC-based apps. Commissions tend to be lower, but order volumes are still growing compared to Swiggy and Zomato.

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