Know what the next Peppol release breaks.
Before your customers do.
E-invoicing rules change several times a year — Peppol BIS, XRechnung, EN 16931, Factur-X, the French CTC rules. Each release silently breaks invoices that passed yesterday. NormDrift keeps your reference invoices under continuous validation against current and upcoming rulesets, and alerts you with the exact rule codes and a deadline.
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The silent failure mode of e-invoicing
Rules drift
OpenPeppol ships two releases a year, KoSIT two, CEN amends EN 16931, France updates its CTC rules.
The May 2026 release alone made Danish org-number rules fatal (PEPPOL-COMMON-R042), added new NL rules and removed PEPPOL-EN16931-R006.
Your invoices break silently
Your generator passed every test when you shipped it. Months later, a schematron update turns a passing invoice type into a rejection — and you find out from an angry customer, not from your CI.
NormDrift catches it early
We re-validate your reference corpus on every official release — including upcoming rules published weeks before they become mandatory. You get the diff, the codes, and the days remaining.
How it works
- Upload your reference invoices — your real invoice types — 5 documents on Free, 50 on Pro (encrypted at rest, EU-only storage).
- We watch the sources — OpenPeppol, KoSIT, CEN, FNFE release feeds, current and upcoming rulesets.
- You get actionable alerts — « The Nov release breaks 3 of your 12 invoice types:
BR-CO-16on credit notes. Mandatory in 42 days. » Plus an API for your CI.
Built for the people who ship invoicing
ERP & SaaS vendors
Your product emits Factur-X or Peppol BIS for hundreds of customers. One rule change multiplies into hundreds of rejections.
EDI integrators
You maintain mappings for many clients across countries. NormDrift tells you which client breaks before the effective date.
Access Points & PDPs
Validation currency is your job description. Put it in CI and prove it with an always-green badge.
Join the private beta
Launching during the biggest e-invoicing wave Europe has seen. The first 20 teams get 50% off, forever. No card required — we'll onboard you personally.
Honest FAQ
Is NormDrift a Peppol Access Point or a French PDP?
No. We never transmit invoices between parties — we are a validation and monitoring tool for the teams that build and operate invoicing software.
What happens to files sent to the free validator?
They are validated in memory and never stored. Paid corpus documents are encrypted (AES-256-GCM) and stored in the EU, with configurable retention.
Which formats are covered?
EN 16931 (UBL & CII), Peppol BIS Billing 3.0, XRechnung (UBL & CII), Factur-X / ZUGFeRD (PDF/A-3 extraction included), French CTC flux. Coming next: Poland KSeF FA(3), PINT (SG/MY/AE), Spain.