DATEV integration: importing data, exchanging records and returning payslips

This is a payroll purchase, not an accounting-export comparison

This guide is for a German employer keeping its DATEV payroll operator, often a tax adviser, while buying HR software. Establish whether the operator uses LODAS or Lohn und Gehalt. A statement about DATEV bookkeeping exports does not answer that payroll question.

The service names matter because the buyer may mean “our adviser gets approved changes” while the sales team demonstrates “employees receive payslips.” Both are useful. Neither proves the other.

Put the three names side by side

DATEV distinguishes the unidirectional import service from its newer exchange service. Personio’s setup guide separately names outgoing data, returning documents and eAU retrieval. These are service capabilities and one supplier’s implementation—not a universal field list.

Bidirectional does not mean every field has two editors

DATEV describes its exchange service as bidirectional, with validation and mechanisms for resolving different data states. It also says an implementing third-party connection and a payroll program are required. The underlying service alone is not a finished HR integration.

Ask the supplier to mark every essential field as HR-owned, payroll-owned or governed by a defined conflict process. “Last update wins” may be a technical answer; the payroll owner still needs to decide whether that is the right operational rule.

For fields that cannot be synchronised, agree who enters the change in the second system and checks the result. Include that time when comparing connections.

A returned payslip is not a returning employee master record

Personio documents a payroll-document import route through the Lohnauswertungsdatenservice. Its monthly workflow separates sending data, completing payroll and checking and distributing the returned documents.

That is useful two-direction traffic, but it is not automatically bidirectional synchronisation of every employee field. Ask separately whether a change made in payroll updates the HR record. Then ask which returned document types are supported and who checks recipient assignment.

Do not put payslip availability and master-data synchronisation into one acceptance box. They answer different employee and payroll needs.

Test conflicting address changes

Use a supplier-approved test environment with no real employee data. A fictional worker, TEST-201, starts with “Example Street 1” in both systems. HR changes it to “Example Street 2”; before synchronisation, the payroll operator changes its test copy to “Example Street 3.”

For an import-only proposal, this exercise may correctly expose that no return update exists. That is not automatically a failure. It becomes a failure when the purchase assumed that the HR record would be updated and nobody owns the gap.

Make the implementation quote describe the flow

• Identity: legal entity, DATEV client context and receiving payroll program.
• Data: supported fields, direction, payroll period and excluded items.
• Documents: required return types, recipient matching and release responsibility.
• Operations: trigger, timing, approval, exceptions and correction owner.
• Commercial scope: HR connector charges, DATEV service charges, adviser setup and ongoing work.

Do not turn a published data-service fee into an all-in integration budget. The employer is buying a configured process spanning organisations. We have not verified a complete comparable implementation price.

Ask the adviser to review the proposed flow before contracting. Resolve missing fields and manual steps before committing to implementation.

Choose the service that supports your required data

An import route can be sufficient when HR owns the relevant inputs and the adviser manages the remaining work. A supported exchange route matters when the business needs controlled changes to return. A document service matters when employees should receive payroll outputs through HR.

Do not replace a working connection merely because another service sounds newer. Replace it when a required flow is missing, the manual work is material, or the current process cannot be reconciled. Then use the Germany HRIS shortlist’s acceptance cases to test the result with the payroll operator.

Questions buyers ask