Message

For Danish Suppliers, a Credit note cannot have a negative total (PayableAmount)

Context
ubl-creditnote:CreditNote[$DKSupplierCountry = 'DK'] | ubl-invoice:Invoice[$DKSupplierCountry = 'DK']
Test
not((boolean(/ubl-creditnote:CreditNote) and ($DKCustomerCountry = 'DK')) and (number(cac:LegalMonetaryTotal/cbc:PayableAmount/text()) < 0) )