> ## Documentation Index
> Fetch the complete documentation index at: https://docs.maesn.com/llms.txt
> Use this file to discover all available pages before exploring further.

# BuchhaltungsButler

> Integrate BuchhaltungsButler easily with Maesn’s Unified API. See the documentation with detailed system coverage and setup prerequisites.

**TARGET\_SYSTEM:** `buchhaltungsbutler-api`  `buchhaltungsbutler-partner`

<div className="integration-table">
  |                      |                          Read                          |                         Create                         |                         Update                         |                         Delete                         |                         Webhook                        |
  | -------------------- | :----------------------------------------------------: | :----------------------------------------------------: | :----------------------------------------------------: | :----------------------------------------------------: | :----------------------------------------------------: |
  | Accounts             | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
  | Async task           | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Bank accounts        | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Bills                | <Icon icon="check" iconType="solid" color="#4db975" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
  | Bill lines           | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Booking proposals    | <Icon icon="check" iconType="solid" color="#4db975" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
  | Contacts             | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Customers            | <Icon icon="check" iconType="solid" color="#4db975" /> | <Icon icon="check" iconType="solid" color="#4db975" /> | <Icon icon="check" iconType="solid" color="#4db975" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
  | Credit notes         | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
  | Dimensions           | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
  | Expenses             | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
  | Files                | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
  | Fiscal years         | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Goods receipts       | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Goods receipt lines  | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Invoices             | <Icon icon="check" iconType="solid" color="#4db975" /> | <Icon icon="check" iconType="solid" color="#4db975" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
  | Invoice lines        | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Items                | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Journals             | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Journal entries      | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
  | Offers               | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
  | Offer lines          | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Open items           | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
  | Payments             | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Payment terms        | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Projects             | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Purchase orders      | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Purchase order lines | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Sales orders         | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Sales order lines    | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Suppliers            | <Icon icon="check" iconType="solid" color="#4db975" /> | <Icon icon="check" iconType="solid" color="#4db975" /> | <Icon icon="check" iconType="solid" color="#4db975" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
  | Tax rates            | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Transactions         | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
  | Trial balance        | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Units                | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Users                | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> |
  | Vendor credits       | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="xmark" iconType="solid" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> | <Icon icon="phone" iconType="light" color="#828282" /> |
</div>

<Icon icon="check" iconType="solid" color="#4db975" /> = Supported by Maesn <br />
<Icon icon="phone" iconType="light" color="#828282" /> = On demand - contact us<br />
<Icon icon="xmark" iconType="solid" color="#828282" /> = Not supported by BuchhaltungsButler <br />

## How to connect to BuchhaltungsButler

As a customer of BuchhaltungsButler, you can easily retrieve the API key used for connecting to your BuchhaltungsButler accounting data.
In general, the integration is carried out by us in coordination with our partner BuchhaltungsButler — however, without any special mention within the BuchhaltungsButler ecosystem.
There is also an authorized partner program that allows for potential listing on the BuchhaltungsButler platform under “Interfaces and API Access.” However, this is an exclusive and highly limited process, which we are happy to assess together in terms of feasibility.

<Steps>
  <Step title="Prerequisites">
    Before you begin, make sure you have the following:

    * A BuchhaltungsButler account with to retrieve the API key.
  </Step>

  <Step title="Retrieve the API key">
    Log in to BuchhaltungsButler using your account credentials and [click on API-Zugang aktivieren](https://app.buchhaltungsbutler.de/customer-settings/preferences/).
    Once the API is activated, the API Client, API Secret, and API Key will be available in the same section. These three values are required for authentication and communication with the API.
  </Step>

  <Step title="maesn Connect setup">
    Paste your API-Client, API-Secret and API-Key in maesn Connect and press 'submit'. If the API key is valid, the connection will be established and a success message will be displayed.

    Your BuchhaltungsButler account is now connected!
  </Step>
</Steps>