fatalPeppol BIS Billing 3.0profileUBL
Invoice period description code must be according to UNCL 2005 D.16B.
The invoice period description code is not in UNCL 2005 D.16B.
Use 3 (invoice date), 35 (delivery date) or 432 (payment date) as the period/tax point code.
UBL — context cac:InvoicePeriod/cbc:DescriptionCode
some $code in $UNCL2005 satisfies normalize-space(text()) = $code