WooCommerce Fortnox Plugin

This WooCommerce Fortnox plugin is a user friendly app for a very basic sync from your WooCommerce store to your Fortnox billing and accounting system. This app does not provide full automatization, hence it is only recommended for small and medium size companies.

This WooCommerce-Fortnox Integration will sync CUSTOMERs, PRODUCTs, ORDERs/INVOICEs from WooCommerce to Fortnox. It is a one way sync from WooCommerce to Fortnox.

Work Flow – The way this app behave is briefly like this:
When a customer place an order in WooCommerce, this order is synced to Fortnox as an ORDER. You will be able to find this order in Fortnox Admin->Orders. This sync will happen if you tick the box for “Enable Order Sync” in the app, and you will need the Fortnox Order Addon.
If tick on “Create Invoice for each order” option, then the synced order will be converted into an INVOICE in Fortnox. You will need the Fortnox Invoice addon for this feature.
If you tick on “Enable Invoice Posting” then the converted invoice will automatically be posted/booked into the default accounts. This feature will simple trigger the “Post” button on the invoice.

Key Features

Sync customer:

Customers are synced from WooCommerce to Fortnox. When a new customer signup or create an order, he will be created in Fortnox. When an existing WooCommerce user makes a new order, the same customer will be used again without creating a new customer.

Synced attributes for customer from WooCommerce to Fortnox :

Customer first name and last name
Address 2
Post code
Phone number

Sync order:

When an order is placed in WooCommerce store, it will be synced into Fortnox as an order. You can also automatically create an invoice for each order. You must enable the ORDER & QUOTE module in Fortnox for syncing orders.

Synced attributes for order from WooCommerce to Fortnox :

Order date
Order number
Contact information
Billing address that sync:
First name and last name
Billing address
Billing address 2
Shipping address that sync :
First name and Last name
Shipping address
Shipping address 2
Shipping method
Payment method

Sync product:  

When a new product is created in WooCommerce, it will automatically be created in Fortnox also. When you change the name or other attributes of a product, it will be synced into Fortnox also. By DEFAULT the app will do the mapping between a WooCommerce product and Fortnox article using the WooCommerce_SKU and Fortnox_Item_Id.

Synced attributes for product from WooCommerce to Fortnox :

Product name
Product title
Product SKU or ID
Product price

Posting invoice:

You can automatically post all invoices in Fortnox.

Sync stock:

This is a multishop feature and Fortnox is considered as base. It means the stock value from Fortnox will be updated into WooCommerce when this feature is run.

Sync tax:

The app has settings so you can decide how the tax should be synced. App is compatible for your sales outside Sweden also.

Synced attributes for vat from WooCommerce to Fortnox :

vat percentage


Get the free plugin WooFortnox here

Latest update: 2023/July/20th

Compatibility: WooCommerce 7.x

Sync invoice

When an order is placed in WooCommerce, it will be synced into Fortnox as an order. App will automatically create an invoice for each order.

Synced attributes for invoice from WooCommerce to Fortnox :

Customer details
Product details
Order details
Invoice date

Credit invoice:

Button to create Credit Invoice when an order is refunded.

Sync discount:

Compatible with WooCommerce own discount features. The final discounted price will be synced to your Fortnox account.

Synced attributes for discount from WooCommerce to Fortnox :

discount code name
discount price based on specifications – entire order or selected collection


Plugin is free to install and use.

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Plugin Configuration
Release history

Get the free plugin WooFortnox here

Support Technical or presales questions related to this Shopify app: support@uniwin.se
Our online chat is available Monday-Friday, check opening hours on Contact page. For questions related to Fortnox AB https://www.fortnox.se/koppling/shopify/

Fortnox-Uniwin Released 2023-07-20