Receipt images & structured invoice data
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DATEV DESTINATIONDATEV Unternehmen onlineHandover remains traceable
DATEV INTEGRATION DEVELOPMENT
Integrate DATEV data services reliably into custom software.
We develop controlled handovers between web applications and DATEV – from receipt images and structured invoice data to approved data flows into DATEV payroll systems. We clarify the data service, OAuth, permissions, mapping and understandable status and failure handling in the product.
The data service follows the use case – not the other way round.
We begin with three questions: Is access approved? Is the data unambiguous in business terms? Do statuses and failures remain traceable in the product?
Access & the appropriate DATEV data service
We assess which approved DATEV data service fits the product and data flow. OAuth, permissions, the test environment and organisational prerequisites are clarified before we commit.
- Data service
- OAuth
- Approvals
Mapping & data quality
Source fields, receipt images and structured invoice or cash data are mapped explicitly together with their business context. Missing or invalid information remains visible before transfer.
- Field mapping
- Formats
- Validation
Status, failures & further systems
Results, corrections and controlled retries remain traceable in the product interface. Where needed, we also connect ERP, banking or payment systems through authorised APIs.
- Status & logs
- Safe retries
- API & ERP
Prove the data flow first. Expand the integration second.
Critical prerequisites are tested early. This avoids building a large integration on an unresolved permission, the wrong data service or an unstable assumption.
- Clarify the use case
Define source, destination, direction, data and business ownership.
- Verify access
Check APIs, permissions, test environments and requirements.
- Test the handover
Exercise mapping, success, failure and safe repetition.
- Secure operation
Anchor statuses, logs, changes and responsibilities.
Dependable integrations begin with verified access.
External interfaces remain subject to the product terms, approvals, versions and technical constraints of their respective providers. We make those dependencies visible before development starts.
The source and destination are known, an authorised and documented access route is available and representative test data exists. Business owners can decide mappings and exceptions.
We do not promise connections to closed systems without approval, the bypassing of permissions or fragile UI automation as a permanent interface. A technical integration also does not replace tax or accounting advice.
What needs to be clarified before a DATEV integration.
Which DATEV interfaces can you integrate?＋
That depends on the business use case, the DATEV products involved, available data services and necessary approvals. We review these conditions before committing and only recommend a route that is technically and operationally viable.
What do the two verified data services cover?＋
Rechnungsdatenservice 1.0 supports the transfer of digital receipt images and structured invoice data to DATEV Unternehmen online. Lohnaustauschdatenservice is intended for data flows between an application and DATEV payroll systems. The exact scope follows the DATEV requirements and the approved use case in each case.
How can effort and timing be assessed?＋
The systems, data fields, authentication, transfer direction, testing options and exceptions first need to be understood. A short technical feasibility assessment provides a more dependable basis than an early fixed estimate.
Which DATEV handover creates duplicate work today?
Show us the source system, destination, data and current workflow. We will assess which data service may fit, which prerequisites are missing and what a dependable first step could look like.