---
title: "Integrations - Concur"
url: "https://docs.unified.to/integrations/concur"
description: "Unified.to documentation"
---
##  Integration: Concur ![Concur](https://api.unified.to/docs/images/concur.png)

[Back to integrations](/integrations)

#### Overview

Company website:

<https://www.concur.com>

Integration launch date:

January 26, 2026

API Categories:

[Accounting](/accounting/overview)[Authentication](/auth/overview)[File Storage](/storage/overview)[Passthrough](/passthrough/overview)

API Authorization:

 OAuth2 flow OAuth2 client credentials flow

Data-regions:

 Production (US2 default) EU2 APJ1 US Government US - Sandbox/Implementation EMEA - Sandbox/Implementation

#### ACCOUNTING CONTACT

End-API object:

 vendor

Unified API Methods:

[List](/accounting/contact/List%5Fall%5Fcontacts)[Get](/accounting/contact/Retrieve%5Fa%5Fcontact)[Create](/accounting/contact/Create%5Fa%5Fcontact)[Update](/accounting/contact/Update%5Fa%5Fcontact)[Remove](/accounting/contact/Remove%5Fa%5Fcontact)

List options:

limitoffsetquerytype

Readable fields:

[billing\_address](/accounting/contact/model)[company\_name](/accounting/contact/model)[currency](/accounting/contact/model)[emails](/accounting/contact/model)[first\_name](/accounting/contact/model)[id](/accounting/contact/model)[identification](/accounting/contact/model)[is\_active](/accounting/contact/model)[is\_customer](/accounting/contact/model)[is\_supplier](/accounting/contact/model)[last\_name](/accounting/contact/model)[name](/accounting/contact/model)[tax\_number](/accounting/contact/model)[telephones](/accounting/contact/model)

Writable fields:

[billing\_address](/accounting/contact/model)[currency](/accounting/contact/model)[identification](/accounting/contact/model)[company\_name](/accounting/contact/model)[emails](/accounting/contact/model)[first\_name](/accounting/contact/model)[is\_active](/accounting/contact/model)[is\_customer](/accounting/contact/model)[is\_supplier](/accounting/contact/model)[last\_name](/accounting/contact/model)[name](/accounting/contact/model)[tax\_number](/accounting/contact/model)[telephones](/accounting/contact/model)

 required fields 

#### ACCOUNTING EXPENSE

End-API object:

 expensereport expenseentry

Unified API Methods:

[Create](/accounting/expense/Create%5Fan%5Fexpense)[Update](/accounting/expense/Update%5Fan%5Fexpense)[List](/accounting/expense/List%5Fall%5Fexpenses)[Get](/accounting/expense/Retrieve%5Fan%5Fexpense)

Webhooks:

 Virtual

List options:

end\_ltlimitoffsetstart\_gtestatusupdated\_gte

Readable fields:

[approved\_at](/accounting/expense/model)[approver\_users](/accounting/expense/model)[attachments](/accounting/expense/model)[category\_ids](/accounting/expense/model)[created\_at](/accounting/expense/model)[currency](/accounting/expense/model)[id](/accounting/expense/model)[lineitems](/accounting/expense/model)[name](/accounting/expense/model)[payment\_method](/accounting/expense/model)[posted\_at](/accounting/expense/model)[reimbursed\_amount](/accounting/expense/model)[reimbursed\_at](/accounting/expense/model)[status](/accounting/expense/model)[total\_amount](/accounting/expense/model)[type](/accounting/expense/model)[updated\_at](/accounting/expense/model)[user\_id](/accounting/expense/model)[users](/accounting/expense/model)

Slow fields:

[lineitems](/accounting/expense/model)[attachments](/accounting/expense/model)[payment\_method](/accounting/expense/model)

Writable fields:

[category\_ids](/accounting/expense/model)[currency](/accounting/expense/model)[lineitems](/accounting/expense/model)[name](/accounting/expense/model)[payment\_method](/accounting/expense/model)[posted\_at](/accounting/expense/model)[total\_amount](/accounting/expense/model)[type](/accounting/expense/model)[user\_id](/accounting/expense/model)

#### ACCOUNTING EXPENSEREPORT

End-API object:

 expensereport expenseentry

Unified API Methods:

[List](/accounting/expensereport/List%5Fall%5Fexpensereports)[Get](/accounting/expensereport/Retrieve%5Fan%5Fexpensereport)

Webhooks:

 Virtual

List options:

end\_ltlimitoffsetstart\_gtestatusupdated\_gte

Readable fields:

[approved\_at](/accounting/expensereport/model)[approver\_users](/accounting/expensereport/model)[attachments](/accounting/expensereport/model)[created\_at](/accounting/expensereport/model)[currency](/accounting/expensereport/model)[id](/accounting/expensereport/model)[lineitems](/accounting/expensereport/model)[name](/accounting/expensereport/model)[posted\_at](/accounting/expensereport/model)[reimbursed\_amount](/accounting/expensereport/model)[reimbursed\_at](/accounting/expensereport/model)[status](/accounting/expensereport/model)[total\_amount](/accounting/expensereport/model)[updated\_at](/accounting/expensereport/model)[users](/accounting/expensereport/model)

Slow fields:

[lineitems](/accounting/expensereport/model)[attachments](/accounting/expensereport/model)

Writable fields:

[\-none-](/accounting/expensereport/model)

#### ACCOUNTING INVOICE

End-API object:

 paymentrequest paymentrequestdigest

Unified API Methods:

[List](/accounting/invoice/List%5Fall%5Finvoices)[Get](/accounting/invoice/Retrieve%5Fan%5Finvoice)[Create](/accounting/invoice/Create%5Fan%5Finvoice)[Update](/accounting/invoice/Update%5Fan%5Finvoice)[Remove](/accounting/invoice/Remove%5Fan%5Finvoice)

Webhooks:

 Virtual

List options:

limitoffsetupdated\_gte

Readable fields:

[contact\_id](/accounting/invoice/model)[currency](/accounting/invoice/model)[due\_at](/accounting/invoice/model)[id](/accounting/invoice/model)[invoice\_number](/accounting/invoice/model)[lineitems](/accounting/invoice/model)[notes](/accounting/invoice/model)[paid\_amount](/accounting/invoice/model)[posted\_at](/accounting/invoice/model)[status](/accounting/invoice/model)[tax\_amount](/accounting/invoice/model)[total\_amount](/accounting/invoice/model)[type](/accounting/invoice/model)

Slow fields:

[lineitems](/accounting/invoice/model)[notes](/accounting/invoice/model)[due\_at](/accounting/invoice/model)[posted\_at](/accounting/invoice/model)[total\_amount](/accounting/invoice/model)[paid\_amount](/accounting/invoice/model)[tax\_amount](/accounting/invoice/model)[contact\_id](/accounting/invoice/model)[currency](/accounting/invoice/model)[status](/accounting/invoice/model)

Writable fields:

[contact\_id](/accounting/invoice/model)[currency](/accounting/invoice/model)[due\_at](/accounting/invoice/model)[invoice\_number](/accounting/invoice/model)[lineitems](/accounting/invoice/model)[notes](/accounting/invoice/model)[paid\_amount](/accounting/invoice/model)[posted\_at](/accounting/invoice/model)[reference](/accounting/invoice/model)[status](/accounting/invoice/model)[tax\_amount](/accounting/invoice/model)[total\_amount](/accounting/invoice/model)

#### STORAGE FILE

End-API object:

 receipt image

Unified API Methods:

[List](/storage/file/List%5Fall%5Ffiles)[Get](/storage/file/Retrieve%5Fa%5Ffile)

List options:

referencelimitoffset

 required filter 

Readable fields:

[created\_at](/storage/file/model)[description](/storage/file/model)[download\_url](/storage/file/model)[id](/storage/file/model)[mime\_type](/storage/file/model)[name](/storage/file/model)[references](/storage/file/model)[type](/storage/file/model)[user\_id](/storage/file/model)[web\_url](/storage/file/model)

Slow fields:

[web\_url](/storage/file/model)

Writable fields:

[\-none-](/storage/file/model)

#### PASSTHROUGH

Unified API Methods:

[POST](/passthrough/overview)[GET](/passthrough/overview)[PUT](/passthrough/overview)[DELETE](/passthrough/overview)

List options:

\-none-

Readable fields:

[\-none-](/passthrough/undefined/model)

Writable fields:

[\-none-](/passthrough/undefined/model)