Integration to Zettle

An automatic integration between Zettle and your accounting system enables you to create an invoice for each sale or transfer the daily turnover to the cash journal (only available for Billy). You can also connect Zettle to your webshop to synchronise orders, products, stock and credit notes.
Connect to:WebshopFile integrationAccounting

Complete integration for Zettle

Optimise the daily operation and maintenance of your Zettle POS with an integration for webshop and accounting systems. A fast transfer rate makes sure that your POS and webshop are always in sync and that you sales are booked automatically in the accounting according to your needs.


Orders are transferred from webshop to the POS to create a sale or stock transaction.


Newly created or updated products are transferred from one system to the other.

Stock amounts

Synchronise stock amounts in regular short intervals to avoid selling sold out products.

Connect Zettle to your webshop or accounting system

Integration between Zettle and accounting system

Create invoices automatically for each sale in the POS. You can also transfer the daily turnover to the cash journal (only valid for Billy). You daily sales are hereby ready to be booked in your accounting system.

How does it work?
When a sale goes through your physical store, an invoice is automatically created in your accounting system, which includes the sold products on invoice lines. The invoice is created with the prices and product information that is set on the product in Zettle.

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Synchronise Zettle with your webshop

Fetch products from your Point of Sale (POS) or your webshop, to create or update products the other system. The POS system is set as master for the webshop stock. Webshop orders are sent to the POS to withdraw from the stock.

How does it work?
When products are sold in your physical store the stock amounts are automatically adjusted in your webshop. Orders coming through the webshop also withdraws from the stock amount in the POS to minimise the risk of selling the same product both places at the same time. When a product is created or updated in the cash register/point of sale or webshop, this change will automatically apply in the other system.


When the webshop order reaches a given state it is automatically transferred to the POS system. Here a sale or stock transaction is created depending on the possibilities in the POS system.


Products are typically transferred from POS to webshop, but can also be transferred from webshop to POS. Settings for how products are transferred and updated are set up to your needs.


POS is master of stock. Stock changes in the POS overwrites stock amounts in the webshop. Webshop orders draw from the stock in the POS. By default stock is updated every 5th minute.

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Simple and advanced workflows

Connect multiple systems on the same account and set up advanced flows that suit your needs.

New order in webshop

An order is received in the webshop. On a given state, e.g. “processing” it is transferred to the POS.

Products are packed in the shop

In the POS the products are deducted from stock, so your actual stock amounts are up to date.

Invoice is booked

An invoice is created in the accounting system. Totals are validated and the invoice is booked automatically.

Calculate price of integration to Zettle

1. Which systems do you want to connect? Choose min. 2 systems

2. How many orders do you have per month?

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What you get with the integration

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Features apply to all systems, with some exceptions.
Contact us if you want to review the functionality.

This combination is a bit special...

There is no suggested default setup for this combo, but feel free to contact us to find out what is possible.

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Talk with one of our experts

If you have questions about our integrations – enter your contact details here for a non-binding chat

Do you want to add extra systems to your existing subscription?

You can add one or more Zettle-connections at EUR 7 per month, for each Zettle.
Contact us to add the system.

Set it up by yourself or purchase setup from IEX

You can set up most of the integrations to this system yourself, if the other system you want to connect to does not require setup by a technician. You can see if the other system requires setup by a technician in the price calculator. When setting up the integration you will be guided through the process, also with descriptions of the settings. If you want to purchase setup by an IEX technician you can do it while ordering or later in the process. In that case a technician will take over the setup, contact you as soon as possible and help you carry out the setup based on your wishes.

Frequently asked questions to the Zettle-integration

Do I have access to support at IEX, if I get the product through Billy?

Billy provides all support on the free version of the integration, in which only the daily turnover is transferred to the cash journal. All questions related to this version should be directed to the Billy support team.

Knowledge base

Read more about how the integration works and which features we offer.
Go to knowledge base

Why choose IEX?

Integrations have previously been very costly and exclusive to large companies. The IEX platform delivers advanced integration functionality to small and medium businesses to automate your challenging business tasks.

Used by

1000 +
satisfied customers

Easy to install

You are guided through the setup in easy-to-use platform.

Support included

All subscription tiers include support.

Secure and reliable platform

Your data is securely handled through an encryption connection.

Huge fan! Delivers every time – both on product and service! IEX delivers both product and service in a class of its own. Are always ready to help find the right solution regarding integration from POS, webshop and accountingsystems. I am a huge fan!

Mikkel Randrup Rasmussen

Online consultant,

IEX saves time and money for me. I use IEX Integration to transfer orders and products from webshop to accounting. I am happy that type of work can be automated. The times I have used their the support, the issues have been solved quick and thoroughly. It seems like a stable system, where everything is under control.

Thomas Krogh