Manual bookkeeping of WooCommerce orders is a time sink. Each order should become an invoice in Fortnox, with the right VAT class, customer register, and article mapping. With the right integration, it happens automatically.
Official integrations
Fortnox WooCommerce (via Fortnox App Market) or third-party alternatives like WooCommerce Fortnox Integration. Both sync orders, customers, and products. A new order in WooCommerce automatically creates an invoice in Fortnox with correct amounts, VAT, and customer details.
What syncs
Orders → invoices. Customers → customer register. Products → article register. Payment status → marked as paid. Shipping amounts are booked to the correct account. Returns create credit invoices. All without you touching Fortnox manually.
Article mapping
Each WooCommerce product maps to an article number in Fortnox. The SKU field in WooCommerce should match the article number in Fortnox. If they don't match, entries are created without article linking, and inventory valuation becomes wrong.
VAT accounts
25 percent VAT: account 2611. 12 percent: account 2621. 6 percent: account 2631. VAT-free: account 2641. Verify that the integration's VAT mapping matches your chart of accounts. Most errors we see involve misconfigured VAT mapping.
Alternatives to Fortnox
Visma eEkonomi has similar integrations. Björn Lundén works with Zapier or custom webhooks. Regardless of accounting system: automate the order-to-invoice flow. It saves hours every week and eliminates manual bookkeeping errors.