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DE-R-026

Message

[DE-R-026]-If both supplier and customer are located in Germany, and if "Invoice type code" (BT-3) contains the code 384 (Corrected invoice), "PRECEDING INVOICE REFERENCE" (BG-3) should be provided at least once.

Context
(/ubl-invoice:Invoice | /ubl-creditnote:CreditNote)[$supplierCountryIsDE and $customerCountryIsDE]
Test
((not(normalize-space(cbc:InvoiceTypeCode) = '384' or normalize-space(cbc:CreditNoteTypeCode) = '384') or (cac:BillingReference/cac:InvoiceDocumentReference)))
Usage
/ ubl:Invoice / cac:BillingReference