Detect and exclude items with invalid GTINs or EANs (for some channels, such as Amazon, GTINs or EANs are mandatory)
is valid
Use the is valid action to check that GTIN or EAN values are valid. The correct GTIN format is eight, twelve, thirteen or fourteen digits.
is not valid
Use the is not valid action to check if the GTIN or EAN format is correct. This action calculates a check digit (which makes sure the barcode is put together correctly).
In Setup > Edit mapping, make sure the field is mapped correctly and is the correct type, as these actions can only be used for GTIN and EAN fields.
