{"api_version":"1","rule":{"code":"DE-R-002","title":"Official Peppol BIS rule DE-R-002","description":"This identifier is defined by the official Peppol BIS Billing validation artefact.","severity":"error","ruleset":"peppol-bis-billing","ruleset_version":"3.0.21","profiles":["full","simplified"],"effective_from":"2026-08-17","effective_to":null,"source":{"id":"peppol-bis","name":"OpenPeppol \u2014 Peppol BIS Billing 3.0.21","url":"https://docs.peppol.eu/poacc/billing/3.0/upcoming/","accessed":"2026-08-15"},"applicability":"UBL Invoice and CreditNote documents validated as Peppol BIS Billing.","remediation":"Follow the returned message and Peppol BIS syntax mapping.","rule_url":"/rules/DE-R-002"}}