GTIN mass update via FBDI load

Summary:

We are trying to add GTINs to already created Items via FBDI load and getting the error - GTIN_XREF, SUB_TYPE - The value of the attribute Sub Type isn't valid.

On relationship tab - transaction type is Update, Subtype MANUFACTURER. Subtype is active in EGP_RELATIONSHIP_TYPES in manage related item subtypes.

Also there are some items that the GTIN is less than 14 digits and is a combination of digits and Characters.

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