DT-CIUS-PT-111.2
The BT-125 does not meet the defined format: the maximum size per file is 5 Mb.
error: the document is invalid
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.
Context
//ubl:Invoice/cac:AdditionalDocumentReference/cac:Attachment/cbc:EmbeddedDocumentBinaryObject | //cn:CreditNote/cac:AdditionalDocumentReference/cac:Attachment/cbc:EmbeddedDocumentBinaryObject
Test
((string-length(.)*0.75) div 1024) < 5000
Checked with Portugal CIUS-PT Invoice (UBL), Portugal CIUS-PT Credit Note (UBL)