Free tool

Leitweg-ID format checker

The Leitweg-ID is the routing identifier German public buyers (B2G) give you — it goes in the XRechnung BuyerReference (BT-10). This checks its structure so it isn't rejected on arrival. Everything runs in your browser; nothing is sent anywhere.

The structure

A Leitweg-ID has two or three hyphen-separated parts:

  • Coarse routing — 2–12 digits (which authority network)
  • Fine routing — optional, up to 30 letters/digits (which department)
  • Check digits — exactly 2 digits

In code

const LEITWEG = /^\d{2,12}(-[0-9A-Za-z]{1,30})?-\d{2}$/;
LEITWEG.test("04011000-12345-67"); // true

Sending XRechnung? A missing or empty BuyerReference triggers BR-DE-15. Our API flags it and every other rule — get a key with 50 free credits →

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