In NT 2021.003, only standard GTIN barcodes duly registered in the GS1 (Barcode System) database will be accepted for the cEAN (barcode of the product) and cEANTrib (barcode of the taxable unit) fields. A validation rule is also provided in this technical note by crossing the tax document's product information with GS1's registration information for the aforementioned GTIN.

When the markete…