A change to a physical dimension, on any axis, or gross weight over 20%, requires assignment of a new GTIN.
New GTIN for:
Existing higher-level packaging
Hierarchy level of GTIN assignment
The GTIN change occurs at the retail consumer trade item or base unit level.
A unique GTIN is assigned at every existing level of packaging hierarchy above the retail consumer trade item/base unit level.
Example business scenarios that require GTIN change
The gross weight of a product increases by 50% from 0.34 kg (0.75 lb) to 0.68 kg (1.5 lb) due to a change in the packaging material from plastic to glass.
The height of a box of laundry detergent changes by 40% from 7.6 cm (3 in) to 10.64 cm (4.2 in).
A case or pallet orientation (there is no change to the item inside) may be changed such that one or more axis changes.
This part of the standard only applies to changes to the dimensions and the gross weight of a product. Any change to declared net content is governed by the rule on Declared Net Content.
Frequent cumulative changes, without changing the GTIN, in avoidance of the 20% rule is an unacceptable practice. Trading partners should be notified about all dimensional changes. Cumulative changes might cause problems for trading partners and may obstruct the flow through of product.