Verify your Leitweg-ID for public sector clients in seconds: check syntax, state/federal routing, and exact KoSIT check digit.
The short answer: With Solobuch's free Leitweg-ID checker, you can validate the 2-digit ISO 7064 Mod 97-10 check digit and German federal/state assignment in real time.
Everything you need to know about Leitweg-ID for B2G e-invoices in Germany.
The Leitweg-ID is a unique identifier for German public contracting authorities. In XRechnung e-invoicing, it ensures automated routing and assignment to the correct government department.
A Leitweg-ID consists of 3 parts: 1. Coarse routing (2-12 digits for state/municipality), 2. optional fine routing (up to 30 alphanumeric chars for department), and 3. a 2-digit checksum based on ISO/IEC 7064 Mod 97-10.
The Leitweg-ID is usually provided in the purchase order, contract, or tender document from the authority. If not specified, ask your procurement contact directly.
Yes, for invoices sent to federal authorities and most state authorities in Germany, Leitweg-ID is a mandatory field (Buyer Reference BT-10).
