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🔥 New hot feature: Raw Data Option to keep flexibility 

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Your SaaS
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Your integrations
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DATEV API integration

Save months of engineering time, by integrating to ‘DATEV Unternehmen online’ and ‘DATEV Rechnungswesen‘ using our Unified API.

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Trusted by winning dev teams

Accelerate DATEV API integration

Gain full control over your DATEV integrations and streamline data exchange with a unified API that cuts complexity.

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Post documents

Effortlessly upload invoices, bills, and credit notes to ‘DATEV Unternehmen Online‘ or ‘DATEV Rechnungswesen‘.

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Booking proposals

Posted bills, invoices or cash transactions into cash ledgers as base for reconciliation.

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Post 
Core data

Create core data entries, such as Debitors, Creditors, Terms of Payment, G/L account labeling or adresses

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Journal entries

Create journal entries as bookings in Rechnungswesen with accounts and dimensions for cost centre and cost units.

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Maesn's DATEV API advantage

Integrate to DATEV Unternehmen Online and DATEV Rechnungswesen with one unified API.

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DATEV accounting integration

Learn everything to deliver robust DATEV integrations for your software.

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Official API provider

Pre-certified DATEV onboarding

Stop struggling with your own CSV/XML/DATEV APIs –
Get a certified DATEV integration with
Maesn’s whitelabel process in days.

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Integrate with
Maesn API

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Production

approval by Maesn

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Certified
App

Learn more on DATEV APIs 

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The missing link to solving DATEV integration challenges

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DATEV API: Comparing Unternehmen online and Rechnungswesen

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DATEV API: Production approval, services & secure authentication 

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Connect, sync, grow

The DATEV API integration advantage

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Integrate in record time

Seamlessly sync your SaaS data in a fraction of time and focus on driving growth.

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Expand integration options 

Ship more SaaS integrations by utilizing engineering resources more efficiently. 

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Drive customer retention

Grow your customer lifetime value steadily by streamlining SaaS integrations.

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Your SaaS
Maesn's magic
Your integrations

Start your DATEV API integration

Grow faster with Maesn by integrating your SaaS to DATEV with one unified API.

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