Application Identifier 02 is used to indicate the GTIN of the contents within another unit and must always be used together with Application Identifier 37 (count) and Application Identifier 00 (Serial Shipping Container Code).
AI 02 may only be used on a logistic unit.
Example
A customer orders three identical cases, and the supplier has not defined a trade item corresponding to the three cases. The cases are placed on a wooden pallet, stretch-wrapped, and labelled with: AI 02 for the contents (the GTIN of the cases), AI 37 for the quantity (3), AI 00 for the SSCC
GTIN number + quantity: