BR-50-SG
A Payment account identifier (IBT-84) shall be present if Credit transfer (IBG-17) information is provided in the Invoice.
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
cac:PaymentMeans[cbc:PaymentMeansCode='30' or cbc:PaymentMeansCode='58']/cac:PayeeFinancialAccount
Test
normalize-space(cbc:ID) != ''
Checked with PINT SG Invoice, PINT SG Credit Note