Native interfaces to the tools your team already uses. An open REST API for everything in between — and a growing roadmap of new integrations.
4
Native integrations live
6+
In the pipeline
REST
Open API
EU
GDPR-compliant hosting
Available from day one
These integrations run in production today and ship with every SYNFONIX package.
BMD
BMD Payroll
Payroll & accounting
Live
Direct data flow between SYNFONIX and your BMD accounting — no more CSV files via email.
Payroll handoff incl. allowances and night work
Master data sync for employees and projects
Accounting export for cost centres
Validation before every handoff
DATEV
DATEV integration
Payroll & accounting
Live
Full interface for tax firms — classic DATEV or LODAS.
DATEV LODAS for payroll
Document transfer DATEV Belege online
ASCII accounting export
Multiple clients in parallel
DOC
DOCBOX archive
Document management
Live
Audit-proof storage for every document, with automatic capture of incoming invoices.
Audit-proof storage, GoBD-compliant
OCR-based automatic capture
Full-text search across all documents
Direct access from every SYNFONIX module
API
Open REST API
For developers
Live
JSON-based API with full OpenAPI spec. Ideal for ERP, web shop or your own tools.
REST + JSON, OpenAPI 3.1
OAuth 2.0 or API key
Webhooks for push events (Q3 2026)
Sandbox environment for development
More integrations on the way
Native interfaces we're building next. Order is driven by customer demand.
EGK
eGecko
Accounting & ERP
Direct interface to eGecko accounting — invoices and bookings flow across without manual re-keying.
Q3 2026
PER
Personio
HR
Keep employee master data and absences in sync between Personio and SYNFONIX, automatically.
Q4 2026
M365
Microsoft 365
Communication
Outlook calendar sync and Teams notifications — appointments, shifts and alerts where your team already works.
Q4 2026
Tool missing? We'll build it.
Using a tool that's not on the list? Tell us about it. The open REST API connects to virtually any modern system — we quote transparently and prioritise integrations with strong customer demand.