Required for all units except Base Units.
This is the GTIN for the next lower-level trade item in the hierarchy.
For base units this field must be null.
For inner packs the child GTIN is the GTIN of the Base Unit.
For Cases the child GTIN is the GTIN of the Inner pack (Three level hierarchy) or the GTIN of the Base Unit (two level hierarchy).
For Multipacks/Prepacks/Display Shippers the field Child GTIN must be repeated.
A 3 level product hierarchy exists for Dandy Mineral Water 500ml.
GTIN Base Unit: 09312345678921 - Dandy Mineral Water 500ml
GTIN Inner Pack: 19312345678928 - Dandy Mineral Water 500ml x 6 GTIN
Case: 29312345678925 - Dandy Mineral Water 500ml x 6 x 4
The Child GTIN of the Base Unit must be NULL.
The Child GTIN of the Inner Pack is 09312345678921 (Base Unit).
The Child GTIN of the Case is 19312345678928 (Inner Pack).
Please use a padded zero/s for GTIN-8, GTIN-12 or GTIN-13
E.g. 09312345678914 for a GTIN-13.
The child GTIN must already exist in the NPC or be included in the current upload.
Child GTIN and Child Quantity are to be provided together.