GR-R-004-1fatal
How to fix GR-R-004-1
When Supplier is Greek, there must be one MARK Number
What this rule checks
Greek invoices must include exactly one MARK (Unique Registration Number) assigned by the IAPR/myDATA system, which proves the invoice was reported to the Greek tax authority.
How to fix it
Add a single AdditionalDocumentReference with DocumentDescription set to the MARK number obtained from the IAPR/myDATA platform.
Related rules
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