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Introduction

Fiken is a Norwegian cloud-based accounting software built for small businesses, freelancers, and self-employed professionals. It combines bookkeeping, invoicing, expense tracking, VAT reporting, and bank reconciliation in a single, easy-to-use platform tailored to Norwegian accounting standards and tax requirements. With its automation features and accountant-friendly workflows, Fiken helps businesses keep their finances organized and stay compliant without specialized accounting expertise.

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Configure Fiken

Prerequisite(s)
  • A Fiken account with developer mode enabled
  • Authentication can happen in two ways:
    • Using the Chift integration app – the easiest option. Ask your Customer Success Manager to add Chift’s OAuth2 keys to the platform, and your customers will be ready to connect.
    • Creating your own integration app in Fiken – register your own app in Fiken and use the generated (test) API keys for your first 5 customers. Once at least 3 customers have a working integration, notify the Fiken support team; they will verify and certify the integration and return a set of production API keys to be used for all subsequent customers.
Activation Process 1. Enable developer mode Log in to your Fiken account and go to Rediger konto → Profil → Andre innstillinger. Check the box indicating you are a developer. 2. Create an OAuth2 application
  • Click the API tab under Brukerinnstillinger
  • Create a new application
  • Set the redirect URI to https://chift.app/oauth2/redirect
  • Copy your Client ID and Client Secret
3. Activate the connector on Chift In your Chift back office, open the Fiken connector and toggle activation. You will be prompted to paste your Client ID and Client Secret. End-users will be redirected to Fiken to authorize access via OAuth2.
During development, Fiken allows up to 5 connected users for free. For production use, email api@fiken.no.

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Testing Fiken

To create a test company, register a company that is not listed in Brønnøysundregistrene and contact hjelp@fiken.no for extended trial access.

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Connecting Fiken

To activate a connection with Fiken, users will have to go through the following steps:

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Coverage

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Troubleshooting

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Specific errors for Fiken:

Error CodeError descriptionResolution
ERROR_INVALID_BODYFiken requires exactly 11 numeric digits for bank account numbers.Provide a valid 11-digit bank account number.
ERROR_INVALID_ANALYTIC_DISTRIBUTIONYou can only use 1 analytic account per invoice in Fiken.Use only one analytic account per invoice.
ERROR_INVALID_INVOICE_BODYA payment method (bank account) is required for customer invoices in Fiken. Fiken only supports one project per invoice (all lines must use the same analytic account).Provide a bank account as the payment method and use only one analytic account per invoice.
ERROR_CURRENCY_NOT_ALLOWEDYou can only create financial entries in NOK in Fiken. An exchange rate must be provided for other currencies.Use NOK as the currency or provide an exchange rate for foreign currencies.
ERROR_INVOICE_CURRENCY_MISMATCHYou can only create payments in the currency of the invoice in Fiken. All invoices must be in the same currency.Ensure the payment currency matches the invoice currency.