ISDOC-4.1.1
Pro typ dokladu 2, 3 a 6 musí existovat vazba na původní doklad. Konkrétně tedy pro DocumentType = 2, 3, 6 musí existovat element OriginalDocumentReference a musí byt neprázdný.
In English Documents of type 2, 3 and 6 (credit note, debit note, credit note to a taxed advance invoice) must refer to the original document: OriginalDocumentReference must be given and not empty.
What the rule checks
As the rule set's publisher wrote it. The rule runs on every element the context matches, and fails where the test is false; the validator reports the line of that element.
isdoc:Invoice[isdoc:DocumentType = (2,3,6)]
isdoc:OriginalDocumentReferences/*
Checked with ISDOC 6.0.2