# DATEV Unternehmen Online — Accounting API

> Canonical URL: https://developers.apideck.com/apis/accounting/datev-unternehmen-online

DATEV Unternehmen Online is the cloud-based document exchange platform connecting German businesses with their tax advisors for accounting data exchange, document upload, and journal entry submission.

## Overview

- **Status:** Beta
- **Auth type:** oauth2
- **Website:** https://www.datev.de

## Supported resources

[Accounting data model](https://developers.apideck.com/guides/accounting-data-model.md)

- `companies` (Companies) — operations: all (not shown in the coverage matrix)
- `company-info` (Company Info) — operations: one (not shown in the coverage matrix)
- `ledger-accounts` (Ledger Accounts) — operations: all, one
- `journal-entries` (Journal Entries) — operations: all, one
- `balance-sheet` (BalanceSheet) — operations: one
- `profit-and-loss` (ProfitAndLoss) — operations: one
- `trial-balance` (Trial Balance) — operations: one
- `tax-rates` (Tax Rates) — operations: all
- `fiscal-periods` (Fiscal Periods) — operations: all, one
- `customers` (Customers) — operations: all, one
- `suppliers` (Suppliers) — operations: all, one
- `attachments` (Attachments) — operations: upload
- `invoices` (Invoices) — operations: add (flagged not supported downstream)
- `bills` (Bills) — operations: add (flagged not supported downstream)

Operations come from the [Accounting API coverage matrix](https://developers.apideck.com/apis/accounting/coverage), the detailed source per connector and resource.

## Documentation

- [Connection (consumer)](https://developers.apideck.com/connectors/datev-unternehmen-online/docs/consumer+connection.md)
- [OAuth Credentials (application owner)](https://developers.apideck.com/connectors/datev-unternehmen-online/docs/application_owner+oauth_credentials.md)

## Related

- [Accounting API reference](https://developers.apideck.com/apis/accounting/reference.md)
- [All Accounting API connectors](https://developers.apideck.com/apis/accounting)