Log in to your HubSpot account.

• Click the settings icon located in the top navigation bar.

• In the left sidebar menu, go to Integrations > Connected Apps.

• Locate the Fortnox integration app in the list of connected apps.

• Click "Actions" next to the Fortnox app.

• Select "Uninstall" from the dropdown menu.

• In the dialog box that appears, type “Uninstall” in the provided text field.

• Click Uninstall to confirm and complete the process.

This will fully disconnect the Fortnox integration from your HubSpot account. If you need to reconnect the integration in the future, you can do so via the HubSpot marketplace.