---
title: "Integrations - Fiken"
url: "https://docs.unified.to/integrations/fiken"
description: "Build Fiken integrations faster with our Unified API — Accounting data, OAuth2, real-time sync."
date: "2026-10-25T22:24:19.492Z"
updated: "2026-10-25T22:24:19.492Z"
---
![](https://api.unified.to/docs/images/fiken.png)

# Fiken integration

[Back to integrations](https://docs.unified.to/integrations.md)

#### Overview

Company website:

<https://fiken.no>

Integration launch date:

September 1, 2026

API Categories:

[Accounting](https://docs.unified.to/accounting/overview.md)[E-Commerce](https://docs.unified.to/commerce/overview.md)[Passthrough](https://docs.unified.to/passthrough/overview.md)

API Authorization:

 OAuth2 flow

#### ACCOUNTING CONTACT

End-API object:

 contact

Unified API Methods:

[List](https://docs.unified.to/accounting/contact/List%5Fall%5Fcontacts.md)[Get](https://docs.unified.to/accounting/contact/Retrieve%5Fa%5Fcontact.md)[Create](https://docs.unified.to/accounting/contact/Create%5Fa%5Fcontact.md)[Update](https://docs.unified.to/accounting/contact/Update%5Fa%5Fcontact.md)[Remove](https://docs.unified.to/accounting/contact/Remove%5Fa%5Fcontact.md)

Webhooks:

 Virtual

List options:

limitoffsetquerytypeupdated\_gte

Readable fields:

[billing\_address](https://docs.unified.to/accounting/contact/model.md)[created\_at](https://docs.unified.to/accounting/contact/model.md)[emails](https://docs.unified.to/accounting/contact/model.md)[first\_name](https://docs.unified.to/accounting/contact/model.md)[id](https://docs.unified.to/accounting/contact/model.md)[identification](https://docs.unified.to/accounting/contact/model.md)[is\_active](https://docs.unified.to/accounting/contact/model.md)[is\_customer](https://docs.unified.to/accounting/contact/model.md)[is\_supplier](https://docs.unified.to/accounting/contact/model.md)[last\_name](https://docs.unified.to/accounting/contact/model.md)[name](https://docs.unified.to/accounting/contact/model.md)[shipping\_address](https://docs.unified.to/accounting/contact/model.md)[tax\_number](https://docs.unified.to/accounting/contact/model.md)[updated\_at](https://docs.unified.to/accounting/contact/model.md)

Writable fields:

[name](https://docs.unified.to/accounting/contact/model.md)[billing\_address](https://docs.unified.to/accounting/contact/model.md)[currency](https://docs.unified.to/accounting/contact/model.md)[emails](https://docs.unified.to/accounting/contact/model.md)[is\_customer](https://docs.unified.to/accounting/contact/model.md)[is\_supplier](https://docs.unified.to/accounting/contact/model.md)[tax\_number](https://docs.unified.to/accounting/contact/model.md)[telephones](https://docs.unified.to/accounting/contact/model.md)

 required fields 

#### ACCOUNTING INVOICE

End-API object:

 invoice

Unified API Methods:

[List](https://docs.unified.to/accounting/invoice/List%5Fall%5Finvoices.md)[Get](https://docs.unified.to/accounting/invoice/Retrieve%5Fan%5Finvoice.md)

Webhooks:

 Virtual

List options:

contact\_idend\_ltlimitoffsetstart\_gteupdated\_gte

Readable fields:

[attachments](https://docs.unified.to/accounting/invoice/model.md)[balance\_amount](https://docs.unified.to/accounting/invoice/model.md)[contact\_id](https://docs.unified.to/accounting/invoice/model.md)[created\_at](https://docs.unified.to/accounting/invoice/model.md)[currency](https://docs.unified.to/accounting/invoice/model.md)[due\_at](https://docs.unified.to/accounting/invoice/model.md)[id](https://docs.unified.to/accounting/invoice/model.md)[invoice\_number](https://docs.unified.to/accounting/invoice/model.md)[lineitems](https://docs.unified.to/accounting/invoice/model.md)[notes](https://docs.unified.to/accounting/invoice/model.md)[paid\_amount](https://docs.unified.to/accounting/invoice/model.md)[paid\_at](https://docs.unified.to/accounting/invoice/model.md)[posted\_at](https://docs.unified.to/accounting/invoice/model.md)[project\_id](https://docs.unified.to/accounting/invoice/model.md)[reference](https://docs.unified.to/accounting/invoice/model.md)[status](https://docs.unified.to/accounting/invoice/model.md)[sub\_total\_amount](https://docs.unified.to/accounting/invoice/model.md)[tax\_amount](https://docs.unified.to/accounting/invoice/model.md)[total\_amount](https://docs.unified.to/accounting/invoice/model.md)[updated\_at](https://docs.unified.to/accounting/invoice/model.md)

Writable fields:

[\-none-](https://docs.unified.to/accounting/invoice/model.md)

#### ACCOUNTING BILL

End-API object:

 purchase

Unified API Methods:

[List](https://docs.unified.to/accounting/bill/List%5Fall%5Fbills.md)[Get](https://docs.unified.to/accounting/bill/Retrieve%5Fa%5Fbill.md)

Webhooks:

 Virtual

List options:

contact\_idend\_ltlimitoffsetstart\_gteupdated\_gte

Readable fields:

[attachments](https://docs.unified.to/accounting/bill/model.md)[bill\_number](https://docs.unified.to/accounting/bill/model.md)[contact\_id](https://docs.unified.to/accounting/bill/model.md)[currency](https://docs.unified.to/accounting/bill/model.md)[due\_at](https://docs.unified.to/accounting/bill/model.md)[id](https://docs.unified.to/accounting/bill/model.md)[lineitems](https://docs.unified.to/accounting/bill/model.md)[paid\_at](https://docs.unified.to/accounting/bill/model.md)[posted\_at](https://docs.unified.to/accounting/bill/model.md)[status](https://docs.unified.to/accounting/bill/model.md)[tax\_amount](https://docs.unified.to/accounting/bill/model.md)[total\_amount](https://docs.unified.to/accounting/bill/model.md)

Writable fields:

[\-none-](https://docs.unified.to/accounting/bill/model.md)

#### ACCOUNTING ACCOUNT

End-API object:

 account

Unified API Methods:

[List](https://docs.unified.to/accounting/account/List%5Fall%5Faccounts.md)[Get](https://docs.unified.to/accounting/account/Retrieve%5Fan%5Faccount.md)

List options:

limitoffset

Readable fields:

[id](https://docs.unified.to/accounting/account/model.md)[name](https://docs.unified.to/accounting/account/model.md)

Writable fields:

[\-none-](https://docs.unified.to/accounting/account/model.md)

#### ACCOUNTING BANKFEEDACCOUNT

End-API object:

 bankaccount

Unified API Methods:

[List](https://docs.unified.to/accounting/bankfeedaccount/List%5Fall%5Fbankfeedaccounts.md)

List options:

limitoffset

Readable fields:

[account\_number](https://docs.unified.to/accounting/bankfeedaccount/model.md)[account\_type](https://docs.unified.to/accounting/bankfeedaccount/model.md)[balance](https://docs.unified.to/accounting/bankfeedaccount/model.md)[id](https://docs.unified.to/accounting/bankfeedaccount/model.md)[name](https://docs.unified.to/accounting/bankfeedaccount/model.md)

Writable fields:

[\-none-](https://docs.unified.to/accounting/bankfeedaccount/model.md)

#### ACCOUNTING JOURNAL

End-API object:

 journalentry

Unified API Methods:

[List](https://docs.unified.to/accounting/journal/List%5Fall%5Fjournals.md)[Get](https://docs.unified.to/accounting/journal/Retrieve%5Fa%5Fjournal.md)

Webhooks:

 Virtual

List options:

limitoffsetupdated\_gte

Readable fields:

[attachments](https://docs.unified.to/accounting/journal/model.md)[created\_at](https://docs.unified.to/accounting/journal/model.md)[description](https://docs.unified.to/accounting/journal/model.md)[id](https://docs.unified.to/accounting/journal/model.md)[lineitems](https://docs.unified.to/accounting/journal/model.md)[posted\_at](https://docs.unified.to/accounting/journal/model.md)[reference](https://docs.unified.to/accounting/journal/model.md)[updated\_at](https://docs.unified.to/accounting/journal/model.md)

Writable fields:

[\-none-](https://docs.unified.to/accounting/journal/model.md)

#### ACCOUNTING CREDITMEMO

End-API object:

 creditnote

Unified API Methods:

[List](https://docs.unified.to/accounting/creditmemo/List%5Fall%5Fcreditmemoes.md)[Get](https://docs.unified.to/accounting/creditmemo/Retrieve%5Fa%5Fcreditmemo.md)

Webhooks:

 Virtual

List options:

contact\_idlimitoffsetupdated\_gte

Readable fields:

[attachments](https://docs.unified.to/accounting/creditmemo/model.md)[balance\_amount](https://docs.unified.to/accounting/creditmemo/model.md)[contact\_id](https://docs.unified.to/accounting/creditmemo/model.md)[creditmemo\_number](https://docs.unified.to/accounting/creditmemo/model.md)[currency](https://docs.unified.to/accounting/creditmemo/model.md)[id](https://docs.unified.to/accounting/creditmemo/model.md)[invoice\_id](https://docs.unified.to/accounting/creditmemo/model.md)[lineitems](https://docs.unified.to/accounting/creditmemo/model.md)[notes](https://docs.unified.to/accounting/creditmemo/model.md)[paid\_amount](https://docs.unified.to/accounting/creditmemo/model.md)[paid\_at](https://docs.unified.to/accounting/creditmemo/model.md)[posted\_at](https://docs.unified.to/accounting/creditmemo/model.md)[status](https://docs.unified.to/accounting/creditmemo/model.md)[tax\_amount](https://docs.unified.to/accounting/creditmemo/model.md)[total\_amount](https://docs.unified.to/accounting/creditmemo/model.md)[updated\_at](https://docs.unified.to/accounting/creditmemo/model.md)

Writable fields:

[\-none-](https://docs.unified.to/accounting/creditmemo/model.md)

#### ACCOUNTING QUOTE

End-API object:

 offer

Unified API Methods:

[List](https://docs.unified.to/accounting/quote/List%5Fall%5Fquotes.md)[Get](https://docs.unified.to/accounting/quote/Retrieve%5Fa%5Fquote.md)

List options:

limitoffset

Readable fields:

[accepted\_at](https://docs.unified.to/accounting/quote/model.md)[contact\_id](https://docs.unified.to/accounting/quote/model.md)[currency](https://docs.unified.to/accounting/quote/model.md)[customer\_message](https://docs.unified.to/accounting/quote/model.md)[id](https://docs.unified.to/accounting/quote/model.md)[issued\_at](https://docs.unified.to/accounting/quote/model.md)[lineitems](https://docs.unified.to/accounting/quote/model.md)[project\_id](https://docs.unified.to/accounting/quote/model.md)[quote\_number](https://docs.unified.to/accounting/quote/model.md)[reference](https://docs.unified.to/accounting/quote/model.md)[sent\_at](https://docs.unified.to/accounting/quote/model.md)[status](https://docs.unified.to/accounting/quote/model.md)[sub\_total\_amount](https://docs.unified.to/accounting/quote/model.md)[tax\_amount](https://docs.unified.to/accounting/quote/model.md)[total\_amount](https://docs.unified.to/accounting/quote/model.md)

Writable fields:

[\-none-](https://docs.unified.to/accounting/quote/model.md)

#### ACCOUNTING SALESORDER

End-API object:

 orderconfirmation

Unified API Methods:

[List](https://docs.unified.to/accounting/salesorder/List%5Fall%5Fsalesorders.md)[Get](https://docs.unified.to/accounting/salesorder/Retrieve%5Fa%5Fsalesorder.md)

List options:

limitoffset

Readable fields:

[billing\_address](https://docs.unified.to/accounting/salesorder/model.md)[contact\_id](https://docs.unified.to/accounting/salesorder/model.md)[currency](https://docs.unified.to/accounting/salesorder/model.md)[id](https://docs.unified.to/accounting/salesorder/model.md)[lineitems](https://docs.unified.to/accounting/salesorder/model.md)[order\_number](https://docs.unified.to/accounting/salesorder/model.md)[posted\_at](https://docs.unified.to/accounting/salesorder/model.md)[status](https://docs.unified.to/accounting/salesorder/model.md)[subtotal\_amount](https://docs.unified.to/accounting/salesorder/model.md)[tax\_amount](https://docs.unified.to/accounting/salesorder/model.md)[total\_amount](https://docs.unified.to/accounting/salesorder/model.md)

Writable fields:

[\-none-](https://docs.unified.to/accounting/salesorder/model.md)

#### ACCOUNTING PROJECT

End-API object:

 project

Unified API Methods:

[List](https://docs.unified.to/accounting/project/List%5Fall%5Fprojects.md)[Get](https://docs.unified.to/accounting/project/Retrieve%5Fa%5Fproject.md)[Create](https://docs.unified.to/accounting/project/Create%5Fa%5Fproject.md)[Update](https://docs.unified.to/accounting/project/Update%5Fa%5Fproject.md)[Remove](https://docs.unified.to/accounting/project/Remove%5Fa%5Fproject.md)

List options:

limitoffsetquerystatus

Readable fields:

[code](https://docs.unified.to/accounting/project/model.md)[contact\_id](https://docs.unified.to/accounting/project/model.md)[description](https://docs.unified.to/accounting/project/model.md)[due\_at](https://docs.unified.to/accounting/project/model.md)[id](https://docs.unified.to/accounting/project/model.md)[is\_active](https://docs.unified.to/accounting/project/model.md)[name](https://docs.unified.to/accounting/project/model.md)[started\_at](https://docs.unified.to/accounting/project/model.md)[status](https://docs.unified.to/accounting/project/model.md)

Writable fields:

[code](https://docs.unified.to/accounting/project/model.md)[name](https://docs.unified.to/accounting/project/model.md)[started\_at](https://docs.unified.to/accounting/project/model.md)[contact\_id](https://docs.unified.to/accounting/project/model.md)[description](https://docs.unified.to/accounting/project/model.md)[due\_at](https://docs.unified.to/accounting/project/model.md)[status](https://docs.unified.to/accounting/project/model.md)

 required fields 

#### ACCOUNTING TRANSACTION

End-API object:

 transaction

Unified API Methods:

[List](https://docs.unified.to/accounting/transaction/List%5Fall%5Ftransactions.md)[Get](https://docs.unified.to/accounting/transaction/Retrieve%5Fa%5Ftransaction.md)

Webhooks:

 Virtual

List options:

end\_ltlimitoffsetstart\_gteupdated\_gte

Readable fields:

[created\_at](https://docs.unified.to/accounting/transaction/model.md)[id](https://docs.unified.to/accounting/transaction/model.md)[lineitems](https://docs.unified.to/accounting/transaction/model.md)[memo](https://docs.unified.to/accounting/transaction/model.md)[status](https://docs.unified.to/accounting/transaction/model.md)[type](https://docs.unified.to/accounting/transaction/model.md)[updated\_at](https://docs.unified.to/accounting/transaction/model.md)

Writable fields:

[\-none-](https://docs.unified.to/accounting/transaction/model.md)

#### COMMERCE ITEM

End-API object:

 product

Unified API Methods:

[List](https://docs.unified.to/commerce/item/List%5Fall%5Fitems.md)[Get](https://docs.unified.to/commerce/item/Retrieve%5Fan%5Fitem.md)[Create](https://docs.unified.to/commerce/item/Create%5Fan%5Fitem.md)[Update](https://docs.unified.to/commerce/item/Update%5Fan%5Fitem.md)[Remove](https://docs.unified.to/commerce/item/Remove%5Fan%5Fitem.md)

Webhooks:

 Virtual

List options:

limitoffsetqueryupdated\_gte

Readable fields:

[account\_id](https://docs.unified.to/commerce/item/model.md)[created\_at](https://docs.unified.to/commerce/item/model.md)[description](https://docs.unified.to/commerce/item/model.md)[global\_code](https://docs.unified.to/commerce/item/model.md)[id](https://docs.unified.to/commerce/item/model.md)[is\_active](https://docs.unified.to/commerce/item/model.md)[is\_taxable](https://docs.unified.to/commerce/item/model.md)[name](https://docs.unified.to/commerce/item/model.md)[prices](https://docs.unified.to/commerce/item/model.md)[total\_stock](https://docs.unified.to/commerce/item/model.md)[updated\_at](https://docs.unified.to/commerce/item/model.md)

Writable fields:

[name](https://docs.unified.to/commerce/item/model.md)[description](https://docs.unified.to/commerce/item/model.md)[global\_code](https://docs.unified.to/commerce/item/model.md)[is\_active](https://docs.unified.to/commerce/item/model.md)[is\_taxable](https://docs.unified.to/commerce/item/model.md)[prices](https://docs.unified.to/commerce/item/model.md)

 required fields 

#### PASSTHROUGH

Unified API Methods:

[POST](https://docs.unified.to/passthrough/overview.md)[GET](https://docs.unified.to/passthrough/overview.md)[PUT](https://docs.unified.to/passthrough/overview.md)[DELETE](https://docs.unified.to/passthrough/overview.md)

List options:

\-none-

Readable fields:

[\-none-](https://docs.unified.to/passthrough/undefined/model.md)

Writable fields:

[\-none-](https://docs.unified.to/passthrough/undefined/model.md)