Shopify and Fortnox, which actually connect
We connect Shopify to Fortnox based on your actual order, customer, item, and financial flows. The right data should end up in the right system without the team needing to manually fix the integration.
An integration begins with responsibility for the data.
A Shopify and Fortnox integration is more than just sending an order. We determine which system owns products, customers, prices, inventory, and financial data, how errors should be handled, and what the team needs to be able to follow up on. This ensures the solution remains stable even as order volume and business grow.
Piigab connects Shopify to Fortnox and much more.
In Piigab's B2B solution, Shopify interacts with customer-specific pricing, quote and purchasing flows, Fortnox, external password and activation systems, and AI support. This is a concrete example of how Shopify can be the hub even in a technically complex business.
This is what we secure in a Fortnox integration
01. Right flows before we choose a solution
We map out what will happen to orders, customers, articles, stock, invoices, accounting records, and any customer-specific prices. After that, we determine if an established integration is sufficient or if the flow needs to be adapted.
02. Orders, customers and invoicing basis
Order data is sent with correct customer information, VAT, discounts, shipping, payment status and references. We ensure that Fortnox receives the information your finance department needs without unnecessary manual steps.
03. Articles, prices, and stock
We determine which system owns the product number, price, and stock status. Mappings, variants, and update rules are documented so that the same data is not overwritten from two sources.
04. Custom Fortnox integration when standard doesn't suffice
If you need customer-specific flows, B2B pricing, special order statuses, external activation codes, or data from multiple systems, we build the logic around your business rather than forcing it into a generic template.
05. Error handling, logging, and testing
A business-critical integration must show when something has not gone through. We test real-world scenarios, handle duplicates and errors, and ensure the team knows how to follow up on discrepancies.
06. Post-launch support
We don't hand over a black box. You communicate directly with the team that built the solution, and agreed-upon features come with a one-year warranty if anything goes wrong.
From data mapping to verified order flow
Analysis
We review the current setup, goals, assortment, customer journey, content, apps and technical requirements.
Structure
We decide which sections, templates, metafields and workflows need to be built.
Development
We build the theme, features, interactions and integrations so the store is fast and editable.
Launch
We test, refine, secure tracking and help with launch and the next improvements.
Projects with business-critical integrations
Show projects
Common questions about Shopify and Fortnox
01. What can be synced between Shopify and Fortnox?
Common flows include orders, customers, items, prices, stock levels, invoice data, payment status, and accounting data. The exact scope is determined by which system will be the master for each data point.
02. Does the integration need to be bidirectional?
Not always. Two-way sync increases complexity and should only be used when the business truly needs it. We clearly define which data flows in which direction to avoid conflicts and duplicates.
03. Can you connect an existing Fortnox environment to Shopify?
Yes. We review item registers, accounts, VAT handling, order flows and existing integrations before anything is connected, so that the transition does not disrupt the financial work.
04. Do Shopify and Fortnox work for B2B?
Yes. Shopify can be combined with customer login, customer-specific prices, quotes, order approval, and Fortnox flows. Piigab is an example where Shopify handles advanced B2B logic in conjunction with Fortnox and other external systems.
05. Are you using an app or building your own integration?
We choose the simplest stable solution. A proven app is the right choice when requirements are standardized. When data or workflows deviate, we build a customized connector or middleware with clear logging and error handling.
06. What happens after the integration has been launched?
We verify real orders and follow up to ensure the flow is working in a live environment. You will have direct contact with the team that performed the work, and agreed-upon features are covered by a one-year warranty.