How to connect to Fortnox

Fortnox uses OAuth 2.0. You do not need to create API keys or copy any credentials — you connect by signing in to Fortnox and approving access.

Prerequisites

• An active Fortnox account with access to the data you want to share (invoices, bookkeeping, suppliers, and so on).
• Your Fortnox user must hold permissions for those areas. If your role is restricted, ask your Fortnox administrator to widen it before you start.
• Fortnox notes that approving individual permissions can require the matching licence on your own Fortnox account. If a permission is unavailable to you, check your Fortnox subscription.

Steps

1. Click Authorize in Vault

Open Apideck Vault and find Fortnox. Before the first connection the card shows the status badge Unauthorized and a button labelled Authorize. Click Authorize.

2. Sign in to Fortnox

You are redirected to the Fortnox sign-in page. Sign in with your Fortnox credentials. If you are already signed in to Fortnox in that browser, this step is skipped.

3. Approve access

Fortnox then shows its consent dialog, headed Aktivering. The dialog is in Swedish and lists every permission being requested (see the table below).

• Click Godkänn & aktivera to approve and activate.
• Avbryt cancels without connecting.

4. Confirm the connection

You are returned to Vault and the connection shows as Connected.

Permissions you will be asked to approve

The Aktivering dialog lists the permissions in Swedish. Here is what each one means:

Shown in Fortnox (Swedish)	In English	What it covers
Kund	Customer	Customer records
Leverantör	Supplier	Supplier records
Faktura	Invoice	Customer invoices
Leverantörsfaktura	Supplier Invoice	Supplier invoices (bills)
Bokföring	Bookkeeping	Vouchers, chart of accounts, financial years
Betalningar	Payments	Invoice payments
Artikel	Article	Articles (products)
Företagsinformation	Company Information	Company information
Order	Order	Purchase orders
Arkivplats	Archive	Attachments and inbox files
Projekt	Project	Projects (used for tracking categories)
Koppla filer	Connect Files	Attaching uploaded files to invoices, bills, and vouchers

All twelve are requested together — Fortnox does not let you approve a subset.

Notes

• The Fortnox consent dialog is only available in Swedish, even if the rest of your setup is in English.
• The connection is made against the Fortnox company you are signed in to. To connect a second company, sign in to that company in Fortnox and authorize again.
• Your Fortnox user needs read access — and write access, if the integration creates or updates records — in each of the areas above.

Troubleshooting

The connection stopped working

Fortnox access tokens are short-lived and Apideck refreshes them for you. If a connection has been idle for a long time, or the application owner changed their Fortnox credentials, the connection needs a fresh authorization: return to Vault and authorize Fortnox again.

Authorization fails, or an area above is unavailable to your account

Fortnox notes that individual authorizations may impose licence requirements on your own Fortnox account. If your subscription or your user role does not cover one of the areas above, authorization can fail. Ask your Fortnox administrator to confirm that your subscription covers those areas and that your user holds the necessary permissions, then authorize again.

You clicked Avbryt by mistake

Nothing is connected and no data is shared. Go back to Vault and click Authorize again.

Need help? Contact Apideck Support.