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Connect your app to Fortnox

about 5 minBuildingchecked 7d agoOfficial page
The short version

Connect your Lovable app directly to your Fortnox accounting account without needing API keys. Your app can then read and manage customer invoices, orders, bookkeeping, and supplier details.

Anyone building Swedish financial tools, invoicing portals, or business dashboards who needs live accounting data from Fortnox.

Do this, in order

  1. 1

    Open Connectors in your Lovable dashboard and select Fortnox.

    This is where you set up and manage connections to outside platforms.

  2. 2

    Click Add connection and enter a display name.

    Giving it a clear label helps you identify which company or environment it connects to inside Lovable.

  3. 3

    Review the requested scopes and turn on only what your app requires.

    Restricting permissions protects sensitive accounting data and keeps your app secure.

  4. 4

    Choose workspace access under 'Who can use this connection'.

    You control whether this connection is private to you, shared with specific teammates, or open to the entire workspace.

  5. 5

    Click Connect, sign in to Fortnox in the pop-up, choose your company, and approve permissions.

    This grants Lovable secure access to that single Fortnox company.

  6. 6

    Ask Lovable in your project chat to link to your Fortnox connection and start building.

    Your project needs to be linked to the connection before it can read or write Fortnox data.

Paste this into your project

Use Fortnox and build a dashboard that shows unpaid customer invoices and overdue balances per customer.

Words decoded

Scopes
Specific permission settings that control which parts of your data (like invoices, customers, or payroll) an app is allowed to view or edit.
Connector
A built-in bridge in Lovable that securely talks to an external service without requiring manual code or API keys.

Where people get stuck

  • A connection only links to one Fortnox company; it cannot be used for individual end-user logins.
  • If you see the error 'Har inte behörighet för scope', your connection is missing a required permission. You must edit the connection scopes and reconnect.
  • Avoid enabling the 'Salary' scope unless explicitly necessary, as it exposes private payroll, attendance, and expense records.
  • The connector cannot receive live webhooks or automated event notifications from Fortnox.
  • All app activity counts against the API rate limits of your Fortnox company account.

The short version, steps, decoder and prompt on this page are written automatically from Lovable's own documentation and can lag or misread it. The official page is always the authority.