Lexoffice

42 tools available

Lexoffice is a cloud-based accounting software designed for freelancers and small businesses, offering invoicing, expense management, and integration with banks

accounting proposal & invoice management

Connect Lexoffice Visit Lexoffice ↗

Connect Lexoffice to Definable to auto-categorise transactions, draft invoices on closed deals, surface cash-flow signals. Personas call Lexoffice's 42 tools directly from chat or scheduled flows. Pair with a finance persona to keep books current and surface what needs human review.

Common workflows with Lexoffice

Auto-categorise

New transaction lands
Agent classifies based on history + memo
Writes the category back

Invoice from event

Triggered by a closed deal
Persona drafts the invoice
Sends with the right terms

Cash-flow digest

Pull this week's ins/outs
Highlight unusual entries
Email a one-pager

Lexoffice actions 42

Every Lexoffice action below is a callable tool any Definable persona can invoke.

Create Article

Tool to create a new article (product or service) in Lexoffice. Use when you need to add items to the product/service catalog for invoicing or quotations. The leadingPrice field must be uppercase (NET or GROSS).

Create contact

Tool to create a new contact (customer or vendor) in Lexoffice. Use when you need to add a new business contact. Either company or person details must be provided, and at least one role (customer/vendor) must be assigned.

Create Credit Note

Tool to create a credit note in Lexoffice. Credit notes are created in draft mode by default; set finalize=true to create with status 'open'. Use when you need to issue a refund or credit for an invoice. Maximum 300 line items per credit note.

Create Delivery Note

Create a delivery note in lexoffice. Delivery notes are created in draft mode by default (set finalize=true for open status). Use when shipping goods or providing services and need to document what was delivered without prices/payment terms. Maximum 300 line items allowed per delivery note.

Create Event Subscription

Tool to register a new webhook for Lexoffice events. Use when you need to receive real-time notifications for specific events like invoice creation, contact changes, or payment updates.

Create Order Confirmation

Tool to create an Order Confirmation in Lexoffice/Lexware. Order confirmations are always created in draft mode and do not need to be finalized. Use when you need to confirm a customer order with line items, pricing, and shipping details.

Create Quotation

Tool to create a quotation in Lexoffice. Quotations are created in draft mode by default. Use the finalize parameter to create a finalized quotation with status 'open'. Requires address with either contactId or name+countryCode, line items, total pricing, and tax conditions.

Create Voucher

Tool to create a bookkeeping voucher in Lexoffice. Use when you need to create expense receipts, sales invoices, purchase invoices, or other accounting vouchers. The voucher requires line items with amounts, tax rates, and posting category IDs.

Delete Article

Tool to permanently delete an article by its ID. Returns success confirmation on 204, or raises error if article not found (404).

Delete Event Subscription

Tool to delete an event subscription by its ID. Use when you need to remove an existing event subscription from Lexoffice.

Download File

Download a file from lexoffice by its ID. Use this to retrieve PDF documents, images, or XML files associated with invoices, vouchers, or other records. The file format returned depends on the Accept header specified.

Get Article

Tool to retrieve an article by ID from Lexoffice. Use when you need to fetch details of a specific article including its price, type, and other metadata.

Get Contact

Tool to retrieve a specific contact by its ID. Use when you need to fetch detailed information about a contact.

Get Credit Note

Tool to retrieve a credit note by its UUID from Lexoffice. Use when you need to fetch details of a specific credit note. Credit notes can be in draft or finalized (open) mode.

Get Credit Note Document

Tool to render a credit note document (PDF). Use to trigger PDF document file rendering for credit notes in status 'open'. Note: This endpoint only works for credit notes that have been finalized (status 'open'), not for draft credit notes.

Get Delivery Note

Tool to retrieve a specific delivery note from Lexoffice by its ID. Use when you need to fetch complete details of a delivery note including address, line items, and tax information.

Get Delivery Note Document

Tool to render a delivery note document (PDF) and retrieve its file ID. This endpoint triggers the PDF document file rendering and returns a documentFileId that can be used to download the actual PDF. Note: This endpoint is deprecated; consider using GET /v1/delivery-notes/{id}/file instead to directly download the PDF.

Get Dunning

Tool to retrieve a dunning document by its ID. Use when you need to fetch details of a specific dunning from Lexoffice.

Get Dunning Document

Tool to render and retrieve a dunning document (PDF) reference. Triggers the PDF document file rendering for newly created dunnings. Use when you need to get the document file ID for a specific dunning to download or reference the PDF.

Get Event Subscription

Tool to retrieve a specific event subscription by its ID. Use when you need to get details about an existing event subscription.

Get Invoice

Tool to retrieve a specific invoice by its UUID. Use when you need to fetch detailed information about an invoice including line items, pricing, and payment terms.

Get Invoice Document

Tool to render an Invoice Document (PDF) by invoice ID. Use when you need to generate or retrieve the PDF document reference for an invoice that is in 'open' status. This triggers the PDF rendering process and returns a document file ID that can be used to download the actual PDF file.

Get Order Confirmation

Tool to retrieve a specific order confirmation by its ID. Use when you need to fetch the complete details of an order confirmation including line items, pricing, addresses, and payment terms.

Render Order Confirmation Document

Tool to render an Order Confirmation Document as PDF. Use when you need to trigger PDF document rendering for a specific order confirmation by providing its ID. Returns a document file reference that can be used to retrieve the rendered PDF.

Get Payment Information

Tool to retrieve payment information for a specific voucher (invoice or credit note) from Lexoffice. Use when you need to check payment status, outstanding amounts, or view payment transaction details for bookkeeping or sales vouchers.

Get Profile

Retrieves the user and company profile information from Lexoffice. Use this action to get account details, enabled features, subscription status, and company information.

Get Quotation

Tool to retrieve a quotation by its ID. Use when you need to fetch details of a specific quotation including line items, pricing, and payment terms.

Get Quotation Document

Tool to render a quotation document as a PDF file. Triggers the PDF document file rendering for newly created quotations in status open. Returns a document file ID that can be used to download the PDF.

Get Voucher

Tool to retrieve a specific voucher by its UUID. Use when you need to fetch detailed information about vouchers such as sales invoices, credit notes, and other financial documents.

List Articles

Tool to list articles from Lexoffice using filters and pagination. Use when you need to retrieve articles filtered by articleNumber, gtin, or type (PRODUCT/SERVICE). Supports pagination with page and size parameters.

List Contacts

Tool to retrieve all contacts from Lexoffice with optional filters. Use when you need to list contacts with filtering options for number, email, name, vendor status, or customer status.

List Countries

Tool to retrieve the list of all available countries with tax classifications from Lexoffice. Use when you need to get country information for invoicing, tax calculations, or address validation.

List Event Subscriptions

Tool to retrieve all event subscriptions for the current access token. Use when you need to inspect configured webhook subscriptions for events.

List Payment Conditions

Tool to retrieve list of currently configured payment conditions from Lexoffice. Use when you need to view all payment terms and conditions set up in the organization.

List Posting Categories

Tool to retrieve the list of posting categories for bookkeeping vouchers (revenue or expense) supported in lexoffice. Use when you need to get available posting categories for creating or updating vouchers.

List Print Layouts

Tool to retrieve all print layouts for invoices and other documents. Use when you need to list available print layouts that can be referenced when creating sales vouchers (invoices, delivery notes, credit notes, etc.).

List Recurring Templates

Tool to retrieve all recurring templates from Lexoffice. Use when you need to list recurring invoice templates with pagination and sorting options.

List Voucherlist

Tool to retrieve voucherlist from Lexoffice including bookkeeping vouchers (salesinvoices, salescreditnotes), invoices, credit notes, order confirmations, quotations, and delivery notes. Use when you need to list vouchers with filtering options for type, status, dates, or contact.

List Vouchers

Tool to filter vouchers by voucher number from Lexoffice. Use when you need to retrieve vouchers with a specific voucher number.

Update Article

Tool to update an existing article in Lexoffice with new data. Use when you need to modify article details such as price, title, type, or other attributes. Requires the article ID and version number for optimistic locking.

Update lexoffice contact

Tool to update an existing contact in lexoffice. Use when modifying customer or vendor information. Requires the contact ID and current version number for optimistic locking.

Upload Voucher File

Tool to upload and assign files (PDF or image) to a specific voucher in lexoffice. Use when you need to attach supporting documents or receipts to an existing voucher. The file upload is asynchronous and returns HTTP 202 (Accepted) when the file is accepted for processing.

Frequently asked questions

What can I automate with Lexoffice on Definable?

Anything Lexoffice exposes through its API. Common accounting workflows on Definable include auto-categorise transactions, draft invoices on closed deals, surface cash-flow signals. Personas can call any of the 42 Lexoffice tools directly, then chain the result into another integration without you writing code.

How does Lexoffice authentication work?

Lexoffice uses API_KEY on Definable. You connect once from the integrations page, scoped to the permissions you choose, and from then on any persona that has the integration enabled can act on your behalf. Tokens are encrypted at rest and rotated automatically.

Is the Lexoffice integration included in my Definable plan?

Yes — every Definable plan, including Starter, includes access to all 42 Lexoffice tools. You only need a separate Lexoffice subscription if Lexoffice itself charges per seat or per API call.

Is using Lexoffice through Definable secure?

Every call from a persona to Lexoffice is logged with the user, persona, prompt, and response. Tokens never leave Definable's secrets vault, scopes are configurable per persona, and you can revoke access at any time from the integration page.

How do I get started with Lexoffice on Definable?

Sign up for Definable, open the integrations page, find Lexoffice, and connect via OAuth or API key. You can immediately attach Lexoffice to any persona and start running workflows. The free Starter plan includes 5,000 credits/month.

What Lexoffice actions does Definable expose?

Definable exposes all 42 Lexoffice actions as callable tools — including `Create Article`, `Create contact`, `Create Credit Note`, plus 39 more. Each tool gets a typed parameter schema so personas know exactly how to call it.

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