Tamio is an e‑commerce platform and admin panel used by merchants and agencies to sell products and subscriptions online. Our Fortnox integration automatically creates customers, products and orders in Fortnox when you sell in Tamio, cutting manual work and keeping your books accurate.
Merchants often copy sales data into Fortnox by hand. Tamio removes that manual step. When a sale is created, we push the necessary data to Fortnox so your finance team can work with up‑to‑date orders and master data.
Save hours of manual entry every month
Reduce errors and mismatches between systems
Keep your Fortnox data clean and audit‑ready
This integration is ideal for Swedish SMEs using Fortnox, and for software agencies that build and operate stores on behalf of clients. It works for one‑off purchases, subscriptions, and mixed catalogs of physical goods and services.
Online retailers and D2C brands
Subscription businesses
Agencies managing multiple client stores
How does it work?
Tamio exchanges core sales data with Fortnox using OAuth 2.0 and the official Fortnox API. On every sale (or on demand), we create or update a customer and products in Fortnox, then create an order that mirrors the Tamio invoice.
Sale in Tamio
A customer buys a product or subscription in Tamio.
Sync master data
We create/update the customer and any missing products (articles) in Fortnox.
Create Fortnox order
An order is created in Fortnox mirroring the Tamio invoice lines.
✓ Customers: create or update by customer number
✓ Products (Articles): auto‑create by identifier when missing
✓. Orders: new Fortnox orders created from Tamio invoices
✓. Revenue accounts per item type (physical/services)
Save time
No more manual re‑entry of sales data into Fortnox.
Improve accuracy
Consistent customer, product and order data across systems.
Move faster
Finance can reconcile earlier and focus on insights, not data cleanup.
Connect in minutes. OAuth handles authentication — no API keys to paste.
In Tamio, go to Integrations → Fortnox and click Connect.
Approve permissions in Fortnox (scopes: article, companyinformation, customer, order, bookkeeping).
In Tamio, open Fortnox Settings and set your revenue accounts for physical goods and services.
Make a test sale. Tamio will sync the customer/products and create an order in Fortnox. You can also submit any invoice manually via “Submit to Fortnox”.
Chisomo K
“It is very user friendly, Everything that i need and want is properly displayed, navigating is very easy using the software and it is very responsive.“
María C
“I love how easy it is to set up, it has a very low price and also is easy to use for the buyers, is super practical.“
Ye Jin Ming M
“Does what it promotes and advertises. Happy that developers are actively improving the saas.“
Fortnox is a business platform with products including accounting, invoicing, financing and HR. Customers also get access to other business services and to hundreds of external systems through partnerships. Fortnox was founded in 2001 with headquarters in Växjö. The share is listed on Nasdaq Stockholm’s main list. For further information see www.fortnox.se.