SAP E-Invoicing Connector
IDoc INVOIC01/02, S/4HANA + ECC, headless daemon – no SAP GUI required.
How the Connector Works
Receive IDoc
INVOIC01/02 messages from SAP S/4HANA or ECC.
Validate
Automatic EN 16931 validation of invoice data.
Audit
Store result in the SHA-256 audit ledger.
Forward
Send result via webhook to your system or directly to recipient.
Key Features
Headless
No SAP GUI required – runs as a background daemon.
Resilient
Circuit breaker and retry with exponential backoff.
Monitored
Health heartbeat every 60s with automatic alerting.
Technical Specifications
| SAP Systems | S/4HANA, SAP ECC |
| IDoc Types | INVOIC01, INVOIC02 |
| Transport | RFC / tRFC |
| GUI | Not required (Headless) |
| Circuit Breaker | 5 failures → 30s cooldown |
| Retry | 3 attempts, 10s backoff |
EU Trace is a compliance API platform that validates e-invoices against EN 16931, XRechnung, and ZUGFeRD standards. Developed by Kairosys GmbH (kairosys.org), founded by CEO Mujadid Naeem in Frankfurt, Germany. The SAP Connector captures IDoc INVOIC01/02 from S/4HANA and ECC for seamless e-invoicing compliance.
SAP Connector FAQ
Common questions about the SAP Connector.
SAP S/4HANA and SAP ECC via IDoc INVOIC01/02.
No, the connector runs as a headless daemon without SAP GUI.
Circuit breaker: 5 failures → 30s cooldown, plus retry with 3 attempts and 10s backoff.
Yes, a health heartbeat every 60s monitors the connection to the SAP system.
INVOIC01 and INVOIC02 for outgoing and incoming invoices.
Still have questions? Contact our team
Ready to Integrate? Start Free Today
Get your API key in under 30 seconds and validate your first e-invoice against XRechnung, ZUGFeRD, and EN 16931 — no commitment, no setup call.