- Announcement of OIOUBL 3: Denmark has announced a new version of its e-invoicing format, OIOUBL 3, with a release candidate presented by Nemhandel on November 21, 2024, which includes mandatory invoice message responses and aligns with the European e-invoicing standard (EN 16931).
- Key Components of the Package: The OIOUBL 3 Invoice Package features a Business Interoperability Specification (BIS) for invoices, credit notes, and responses, along with migration plans detailing interactions with existing formats and specific field definitions for various document types.
- Major Changes: Significant updates in OIOUBL 3 include the separation of message level and business level responses, the requirement for institutional end users to receive invoice responses at a registered endpoint, and adjustments to field definitions and calculations to ensure compliance with EN 16931.
- Actions for Senders and Receivers: Invoice senders must register as suppliers in the Nemhandelsregistret (NHR) with mandatory OIOUBL 3 document profiles, while receivers should register as customers with both OIOUBL 2.1 and OIOUBL 3 profiles to facilitate a smooth transition during the migration period.
- Migration Timeline: The Danish Business Authority has set a detailed migration plan, with key dates including the final release of OIOUBL 3 on April 10, 2025, voluntary support until May 15, 2025, mandatory support starting November 15, 2025, and the discontinuation of OIOUBL 2.1 support by May 15, 2026.
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