It's a field just under the title.

If you don't know it, or it is irrelevant, use 'NA'.

A UPC, short for universal product code, is a type of code printed on retail product packaging to aid in identifying a particular item. It consists of two parts – the machine-readable barcode, which is a series of unique black bars, and the unique 12-digit number beneath it.

Hi everyone,



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Thank you for understanding.