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Installation manual for the Zettle Twinfield integration

Connect Zettle with Twinfield and automatically process POS transactions in your accounting. Ideal for retailers and accountants using Zettle and Twinfield.


Table of contents


1. Connect to Zettle

To activate your Zettle integration, you'll need to give Combidesk one-time access to your Zettle account. This is done through a secure OAuth authorization — you won't need to share your password with Combidesk directly.

What you'll need

  • An active Zettle account

  • Your Zettle login credentials (email address and password)

  • Owner or admin rights within Zettle

Connecting Zettle — step by step

Follow these steps when installing your Zettle integration on Combidesk:

  1. Start the installation of your Zettle integration via combidesk.com.

  2. Click Connect with Zettle — you'll be redirected to the Zettle login page.

  3. Sign in with your Zettle account. Use the email address and password of the account you want to connect.

  4. Grant permission. Zettle will ask you to confirm that Combidesk may access your data. Click Authorize or Allow.

  5. You'll be automatically redirected back to Combidesk and the connection will be active. You can now continue with the setup of your integration.

Multiple locations or accounts?

If you have multiple Zettle accounts (for example, one per location), you'll need to install a separate integration for each account within Combidesk. Make sure to sign in with the correct account during step 3.


2. Connect to Twinfield

What do you need? Before you start, make sure you have:

  • An active Twinfield subscription through Wolters Kluwer

  • Your Wolters Kluwer login credentials (email address and password)

  • Access to the administration(s) you want to connect

Don't have a Twinfield account yet? Request one at wolterskluwer.com.

Step by step: setting up the OAuth connection

Step 1: Start the installation
Go to the integration's installation page and click "Start connecting". You will be redirected to the Wolters Kluwer authorization portal.

Step 2: Log in with your Wolters Kluwer account
Enter the email address and password of your Wolters Kluwer account. This is the same account you normally use to log in to Twinfield.

Step 3: Grant permission
After logging in, you will see a screen asking whether you want to give the integration access to your Twinfield data. Click "Allow" to confirm the connection.

Step 4: Select the correct administration Do you have multiple administrations within Twinfield? Select the administration you want to connect. Want to connect multiple administrations? Simply repeat the process for each administration separately.

Step 5: Done!
You are now successfully connected. The integration will automatically sync your data between your webshop and Twinfield from this point on.

Frequently asked questions

My login credentials don't work — what now?
Check that you are using the email address and password of your Wolters Kluwer account, and not those of a possible old Twinfield account. Forgotten your password? Reset it via the Wolters Kluwer login portal.

How long is the connection valid?
The OAuth connection remains active as long as you use the integration. You do not need to repeat this process periodically, unless you change your password or manually disconnect.

Can I disconnect later?
Yes. You can revoke access at any time via your Twinfield account settings under Connected applications, or by removing the integration from our platform.

I have multiple administrations — can I connect them all?
Yes, our integration supports multiple administrations. Simply install the integration for each desired administration separately.


3. Configuration of the integration

For the integration to work properly, it must be configured correctly. In the paragraph below, we'll go through all the steps of the integration in sequence. Before starting the installation, we recommend that you first carefully read through these steps.


Configure these Zettle steps:

  • Export existing purchases
    Do you want to export existing purchases from your Zettle account?


Configure these Twinfield steps:

  • Select the Twinfield office
    The office sales transactions will be created for

  • Select a cash daybook account
    The cash daybook account in which the daily revenue bookings will be done

  • Payment method configuration
    Map the payment conditions of Zettle to the corresponding ledger accounts of Twinfield

  • Revenue group configuration
    Map the revenue groups of Zettle to the corresponding ledger accounts of Twinfield

  • Btw-configuratie

  • Select default ledger account
    Selecteer de standaard grootboekrekening waarop omzet geboekt moet worden

  • Cashbook account
    Enter the number of the cashbook account (1000 is used by default)

  • Default payment method ledger account
    Select the default ledger account for payment methods that are not mapped

  • Select default cost center
    Select the default cost center to book the revenue on


4. The Combidesk customer dashboard

How does the dashboard work?

If you've created a new Combidesk account or installed a integration, you'll receive an email with access to your Combidesk account. When you log in to combidesk.com, you'll arrive at the dashboard. This is where your integration is located. From here, you can easily adjust your integration and account settings, view the integration logs (history), and access support.

What can you view via your Combidesk account?

From your Combidesk dashboard you also have access to your account settings, connected accounts, billing and support.


5. What can you expect from Combidesk?

We understand you're busy or perhaps have little software experience. That's why our specialized team is always ready to help. Take advantage of our installation packages to save yourself even more time.

Installation appointment

If you're short on time or would like us to handle the entire installation, take advantage of our remote implementation support. We'll take care of everything for you right away and deliver a fully functional connection. For most connections, installation support costs a fixed fee of €150, while others cost €300. If you decide not to continue with the connection after the trial period, there's no charge. Schedule an installation appointment below and schedule it right away.

Explanation of service level (SLA) subscriptions (Basic, Pro, Premium)

To help you use our integration effectively, we offer three service levels: basic, pro, and premium. You can always change the service level in your integration. The price will be adjusted for the next billing period.

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