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Bypass DATEV Belegfreigabe Online for Pre-Approved Invoices Using Maesn Unified API

In German accounting setups, DATEV Unternehmen Online plays a central role in document handling and financial posting. Add-ons such as DATEV Belegfreigabe Online and DATEV Belegfreigabe Online Comfort extend this platform by introducing structured approval workflows before invoices and bills are posted.

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Dr. Themo Voswinckel

March 30, 2026

Bypass DATEV Belegfreigabe Online via API

Key Takeaways for bypassing DATEV Belegfreigabe

  • DATEV Belegfreigabe Online and DATEV Belegfreigabe Online Comfort are two Add-ons to DATEV Unternehmen Online
  • Both Add-ons are made to ensure, that bills and invoices are approved before they are further processes within the DATEV environment
  • All manually (or via mail) uploaded invoices or bills end up in the pre-defined approval processes
  • If invoices or billes are transferred via API they bypass by default the approval process
  • Maesn Unified API supports files transfer for DATEV Unternehmen Online and ensures that pre-approved bills and invoices bypass DATEV Belegfreigabe
  • One integration with Maesn unlocks DATEV API Integration and dozens of other ERP systems via one Unified API

Maesn-based integrations can bypass DATEV Belegfreigabe without disabling it globally

A common assumption is that once Belegfreigabe Online is enabled, it must apply to all documents. In reality, this frequently creates unnecessary friction, as teams end up disabling Belegfreigabe entirely, thereby increasing the risk of manual errors in scenarios where approval workflows would otherwise add value.

Bypassing DATEV Belegfreigabe Online with Maesn Unified API

Using the Maesn Unified API, pre-approved invoices and booking proposals can be transferred to DATEV in a way that bypasses Belegfreigabe Online entirely.

  • API-originated data through Maesn follows a controlled, automated processing path
  • Manually uploaded documents can still go through Belegfreigabe Online as usual

Nothing is disabled, overridden, or reconfigured globally. The approval workflow remains available exactly where it makes sense.

This creates a clean separation between:

  • automated system integrations
  • manual accounting workflows

Both can coexist in the same DATEV environment without conflict.

DATEV API Integration with Maesn is compatible with Belegfreigabe feature
Maesn relies on DATEV Rechnungsdatenservice 1.0 to enable invoice transfers that bypass DATEV Belegfreigabe Online.

Maesn uses DATEV Rechnungsdatenservice 1.0 to bypass DATEV Belegfreigabe Online

The Maesn Unified API acts as an abstraction layer on top of the DATEV Online APIs (and additional services). All relevant XML, CSV, and DATEV-specific formats are covered by our API and unified within a common data model that applies across all systems supported by Maesn. You can find more information about the different services and how we use them to provide a smooth and seamless developer experience here.

One unified Integration flow for all systems - even with DATEV Belegfreigabe

For engineering teams, this approach simplifies the integration significantly. Applications can rely on a deterministic API flow: documents and booking proposals are transferred, processed, and available in DATEV without waiting for manual approval steps.

There is no need to implement approval logic, handle intermediate states, or adapt behavior based on customer-specific Belegfreigabe configurations. The API contract remains stable and predictable across customers.

Accounting and finance teams retain full flexibility

Automated documents arrive without additional effort, while manual documents can still be reviewed and approved using Belegfreigabe online. This preserves internal control processes where they are needed, without blocking automation where they are not.

The result is a clear separation between automated system integrations and manual accounting workflows, both operating side by side within DATEV.

Bypassing DATEV Belegfreigabe enables scalable, real-world integrations

The ability to bypass DATEV Belegfreigabe for pre-approved invoices is essential for:

  • AR/AP automation platforms
  • Expense management tools
  • Billing systems
  • High-volume transaction use cases

Rather than enforcing a single workflow, Maesn adapts to existing DATEV setups and approval models, making automation scalable without compromising flexibility.

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Summary: Bypass DATEV Belegfreigabe without losing approval control

With Maesn-based DATEV integrations:

  • Pre-approved invoices can bypass DATEV Belegfreigabe Online and DATEV Belegfreigabe Online Comfort
  • Manual approval workflows remain fully intact
  • Automation and control operate side by side

This approach eliminates unnecessary friction in automated accounting processes, without changing how accountants work where manual review is still required.

About the author

Themo is CEO and Co-Founder of Maesn. With years in strategy consulting — spanning requirements engineering for complex software landscapes, ERP and accounting software selections, and end-to-end integration projects — he holds a Dr.-Ing. with a focus on ERP-to-SaaS transformation. He co-founded Maesn to make system integration effortless.

Dr. Themo Voswinckel

Co-Founder

Frequently asked
questions

You have more questions? We are looking forward hearing from you - book a meeting now!

Can DATEV Belegfreigabe Online be bypassed at all?

Yes. Invoices and booking proposals that are transferred to DATEV Unternehmen Online via Maesn Unified API can bypass the Belegfreigabe Online approval workflow. Manual uploads are still routed through Belegfreigabe as usual.

Does bypassing DATEV Belegfreigabe disable approval workflows globally?

No. Belegfreigabe Online and Belegfreigabe Online Comfort remain fully active for manually uploaded documents. Only API-originated data follows the automated path without approval steps.

Is bypassing Belegfreigabe via Maesn compliant with DATEV standards?

Yes. Maesn uses DATEV’s official interfaces as the the Rechnungsdatenservice 1.0. Maesn is official DATEV interface provider and is fully compliant and aligned with DATEV’s intended system architecture.

Which documents bypass DATEV Belegfreigabe automatically?

Invoices and bills that are transferred via API from pre-approved upstream systems (for example AR/AP or expense platforms) bypass Belegfreigabe. Documents uploaded manually or via email do not.

Can accounting teams still review automated invoices if needed?

Yes. All documents remain visible and traceable within DATEV. Teams retain full transparency without being forced into redundant approval steps.

Does Maesn work with DATEV Belegfreigabe Online Comfort as well?

Yes. The same principle applies to both Belegfreigabe Online and Belegfreigabe Online Comfort.

Do customers need to change their DATEV configuration?

No. No customer-side configuration changes are required. The separation between API-based automation and manual workflows works out of the box.

Which DATEV service is used to bypass Belegfreigabe Online?

Maesn uses DATEV Rechnungsdatenservice 1.0 to transfer invoices in a way that bypasses Belegfreigabe Online.

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