GR-R-004-1
When Supplier is Greek, there must be one MARK Number
What does this rule mean?
A Greek seller is missing the MARK number.
The MARK is the receipt number of the Greek myDATA platform and evidences the transmission.
Official rule message (standard)
When Supplier is Greek, there must be one MARK Number
Where the rule applies
Syntax: UBL
Affected element (XPath):
/ubl-invoice:Invoice[$isGreekSender and ( /*/cac:AccountingSupplierParty/cac:Party/cac:PostalAddress/cac:Country/cbc:IdentificationCode = 'GR')] | /ubl-creditnote:CreditNote[$isGreekSender and ( /*/cac:AccountingSupplierParty/cac:Party/cac:PostalAddress/cac:Country/cbc:IdentificationCode = 'GR')]
Technical test
The rule passes when this Schematron expression holds true:
count(cac:AdditionalDocumentReference[cbc:DocumentDescription = '##M.AR.K##'])=1How to fix it
A missing or incorrect business entry only you can supply. Add or correct it, then re-check.
Add exactly one MARK number.
Correct the affected entry in your XML, then re-check the invoice. Validation runs locally in your browser — your file never leaves your machine.
Check an e-invoice here
Drop an XML or ZUGFeRD PDF file here. Validation runs locally in your browser against EN 16931 — your file never leaves your machine.