The Dutch central government has announced it will no longer support the SI-UBL 1.2 standard, beginning 1 January 2023.
As the Netherlands Peppol Authority made SI-UBL 1.2 optional as of 1 July 2022, this now means that parties operating on the Peppol network are no longer obliged to support it. However, the Dutch central government will still accept the document until 1 January 2023.
The options parties sending documents to the Dutch central government will have after the cessation of the use of SI-UBL 2.1 are the following standards: NL-CIUS and Peppol BIS. It is also important to note that the identifier OIN: 0190 should be used when moving to these new preferred standards.
Source Pagero